70+ GB system recovery file in C drive

Hi adi_jha30:

This excessive use of disk space by SupportAssist OS Recovery is a known issue that is currently being investigated by Dell. Please see my 06-Jul-2021 post in Zaghan's SA OS Recovery, Taking Up Too Much Storage in the SupportAssist for PCs board for more information.

Turning off System Repair should automatically delete the Dell system repair points (snapshots) saved in the hidden folder C:\ProgramData\Dell\SARemediation\SystemRepair\ and free up GBs of disk space. The first method is to disable System Repair in the Dell SupportAssist settings at Options (gear icon) | Settings | System Repair | System Repair is Turned On | OFF.

The second method is to disable System Repair in the SupportAssist OS Recovery control panel at System Repair at Control Panel | System and Security | SupportAssist OS Recovery | Settings | System Repair | OFF.

If you've already uninstalled Dell SupportAssist Remediation from Control Panel | Programs | Programs and Features and can't manually delete the Dell system repair points in C:\ProgramData\Dell\SARemediation\SystemRepair\ you will likely have to uninstall SupportAssist and all its associated components first (for most users this includes Dell Support Assist OS Recovery Plugin for Dell Update and Dell SupportAssist Remediation). See Dell employee DELL-Chris M's instructions at SA Uninstall / Reinstall, which has a section titled "How to Delete the Older SA Snapshot Files After Uninstalling SA". After you reinstall SupportAssist it will likely offer the SupportAssist OS Recovery Tools (a.k.a. Dell SupportAssist Remediation) as an Optional update the first time it checks for updates, so if you don't want this software reinstalled on your system be sure that update is declined. I have turned off automatic updates and optimization scans in SupportAssist [Options (gear icon) | Settings | Automate Scans and Optimizations | Scan Your System and Drivers at: | OFF] and run my update checks manually to ensure I have full control over the updates that are installed by SupportAssist.

I currently have System Repair disabled on my Inspiron 5584, but note that I use Macrium Reflect Free to create the occasional full disk image of my system that I save to an external backup drive for emergency recovery, and I've also used this software to create a bootable USB recovery media. I've also enabled Windows System Restore as instructed in the Windows Central article How to Use System Restore on Windows 10 for additional protection.
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64-bit Win 10 Pro v20H2 build 19042.1052 * Firefox v89.0.2 * Microsoft Defender v4.18.2105.5 * Malwarebytes Premium v4.4.2.123-1.0.1358 * Dell SupportAssist v3.9.2.57 * Dell SupportAssist Remediation v5.4.1.14954 * Dell Update v4.2.1 * Macrium Reflect Free v7.3.5925
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, Toshiba KBG40ZNS256G 256 GB NVMe SSD, Intel UHD Graphics 620

Thanks for the quick reply,

In the settings of my support assist, there wasn't an option of system repair (in the picture you uploaded, the bottom most option, it wasn't there). 

I couldn't find anything on control panel either. I have support assist and support assist OS recovery installed on my laptop, and I couldn't find anything related to 'remedies' which you mentioned, although I do not remember uninstalling anything of the sort.

What am I to do from here? Are you aware of anything I'm doing wrong? Or should I go the uninstalling route?

Thank you

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@adi_jha30 wrote:

...As recommended in many other answers, uninstalling Dell Back-up and Recovery should have fixed the issue as I was told that it would take care of the folder...the C drive is still filling up and system recovery folder is still taking up 70Gb( I could see this folder only using Tree Size)...

...I have support assist and support assist OS recovery installed on my laptop, and I couldn't find anything related to 'remedies' which you mentioned, although I do not remember uninstalling anything of the sort.

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Hi adi_jha30

What is your Win 10 the version and build (see the TechSmith article How to Check Windows 10 Build and Version) and let us know if your Insprion 3542 originally shipped with an earlier version of Windows. Please clarify if you are trying to remove Dell Backup and Recovery or Dell SupportAssist Remediation (a.k.a., SupportAssist OS Recovery). If both programs have been installed on your system I have no way of knowing which program created the hidden 70 GB folder on your C: drive you're trying to remove without more information.

I think I have misunderstood your original post. You said there that you uninstalled Dell Backup and Recovery, but according to the support article Dell Backup and Recovery this is older software that was preloaded on Dell Win 7 and Win 8.x devices that were shipped before April 14, 2016. If you upgraded to Win 10 and are now trying to remove the old Dell Backup and Recovery (and not the newer Dell SupportAssist Remediation / SupportAssist OS Recovery Tools as I originally assumed) then let us know the full path of the folder(s) you have found that you think contains remnants of Dell Backup and Recovery (e.g., C:\dbkr), including the path to the hidden 70 GB folder you can only view in TreeSize. You should also look in your Windows Services at Start | Windows Administrative Tools | Services and see if you can find any services related to Dell Backup and Recovery that are running on your system. I found a 2014 post by Dell employee DELL-David F in Dell Backup and Recovery Software that states that "Dell Backup & Recovery will have two entries in "Programs and Features" (control panel), both should be uninstalled (reboot!)" so you might also want to look  in Control Panel | Programs | Programs and Features again for any programs related to Dell Backup and Recovery that still need to be uninstalled.

In your last post you also said that you have SupportAssist and SupportAssist OS Recovery installed, so if you're certain that you haven't uninstalled the Dell SupportAssist Remediation program then I'm not sure why you don't see SupportAssist OS Recovery at Control Panel | System and Security or why the Dell SupportAssist Remediation program isn't listed at Control Panel | Programs | Programs and Features. There should also be a service called Dell SupportAssist Remediation Service at Start | Windows Administrative Tools | Services if the SupportAssist OS Recovery Tools installed correctly. If you have a hidden folder at C:\ProgramData\Dell\SARemediation\System Repair then System Repair must have been enabled on your machine at some point in time [note that my TreeSize Free image below shows my \Snapshots subfolder only uses 16 KB of disk space because all my stored system repair points (snapshots) were automatically deleted when I turned off System Repair].

If someone else doesn't jump into this thread and you're still having problems removing the last remnants of Dell Backup and Recovery you might have to post in the Dell Productivity Software board and ask for assistance there.  I have no experience with this older software and don't want to suggest anything that might do more harm than good.
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64-bit Win 10 Pro v20H2 build 19042.1052 * Firefox v89.0.2 * Microsoft Defender v4.18.2105.5 * Malwarebytes Premium v4.4.2.123-1.0.1358 * Dell SupportAssist v3.9.2.57 * Dell SupportAssist Remediation v5.4.1.14954 * Dell Update v4.2.1 * Macrium Reflect Free v7.3.5925 * TreeSize Free Portable v4.5.0
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, Toshiba KBG40ZNS256G 256 GB NVMe SSD, Intel UHD Graphics 620

My windows version was 8.1 when I got it, and I did upgrade to windows 10 (Version 2004, OS build 19041, 1052) years ago.

As for Dell Backup and Recovery, after I had to restart in between the uninstall, I found folders in Programs files and Program Files x86, which I got rid of. I wasn't sure if any were left, so I asked about it. 

Also, the only thing in windows administrative tools was a file called 'desktop.ini'.

The path to the huge folder is as follows: This PC > OS(C:)>System Recovery>Repair

This repair folder has a 50GB folder called 'Backup' (which whenever I try to open in tree size makes the app crash), and various other back-up files, each a few Gb in size.

Regarding SAremidiation, I couldn't find the folder you mentioned:

What am I to do from here?

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@adi_jha30 wrote:

My windows version was 8.1 when I got it, and I did upgrade to windows 10 (Version 2004, OS build 19041, 1052) years ago.

As for Dell Backup and Recovery, after I had to restart in between the uninstall, I found folders in Programs files and Program Files x86, which I got rid of. I wasn't sure if any were left, so I asked about it. 

Also, the only thing in windows administrative tools was a file called 'desktop.ini'.

The path to the huge folder is as follows: This PC > OS(C:)>System Recovery>Repair...

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Hi adi_jha30:

My Inspiron 5584 / Win 10 v20H2 laptop does not have a C:\System Recovery folder so your assumption that this folder is associated with your old Dell Backup and Recovery software might be correct.

The image below shows all the folders in my root C:\ drive that are larger than 1 GB. The 10.8 GB C:\System Volume Information folder contains the system restore points created by the built-in Windows System Restore feature, and the 3.5 GB C:\Recovery folder (expanded to show the files inside) appears to be associated with Dell SupportAssist Remediation (a.k.a. SupportAssist Recovery) since files in that folder haven't been updated since 09-May-2021 when I disabled System Repair in SupportAssist. Note that my C:\ProgramData folder is currently using 3.2 GB of disk space, but an older image I posted <here> shows this folder exceeded 20 GB of disk space when System Repair was enabled and creating Dell repair points (snapshots) in the hidden folder C:\ProgramData\Dell\SARemediation\SystemRepair.

I'm beginning to run out of ideas (at least ones that don't have the potential to damage your system) but here are few other things you might want to check:

When you try to delete the 72.5 GB C:\System Recovery are you logged in with a Windows users account that has Administrator rights?

If a lack of Administrator rights isn't the problem, try running a 30-day trial version of Revo Uninstaller Pro to see if it can find and remove remnants of your previously uninstalled Dell Backup and Recovery program. I have no idea how new files are being created inside your C:\System Recovery folder if that folder is actually associated with Dell Backup and Recovery, but if Revo Uninstaller Pro can remove the last traces of this program this might allow you to delete your C:\System Recovery folder.

When you say the "the only thing in windows administrative tools was a file called 'desktop.ini'" are you referring to a Dell Backup and Recovery folder, or do you mean that all the shortcuts in your Start menu (e.g., for Disk Cleanup, Event Viewer, Services, etc.) at Start | Windows Administrative Tools are all missing? I'll assume for now that when you upgraded from Win 8.1 to Win 10 that you did an over-the-top up upgrade that left your personal files and third-party programs like Dell Backup and Recovery installed, but that you have never done a clean reinstall of Win 10 to wipe everything off your computer (including your personal files and third-party programs) to start over from scratch. Post back and let us know if that assumption is correct.

In the meantime I'd suggest you check the status of your Windows 10 system files using the built-in System File Checker (SFC) utility. Open an elevated command prompt with Administrator rights (search for "Command Prompt" from the search box next to the Start button and choose Run as Administrator) and then enter the command sfc /scannow (note the space after "scf"). Allow the scan to run to completion, and if it does not report "Windows Resource Protection did not find any integrity violations" as shown below then let us know the exact message displayed. The ghacks.net article Use DISM to Fix Issues SFC Can't for more information about this System File Checker utility.

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64-bit Win 10 Pro v20H2 build 19042.1052 * Firefox v89.0.2 * Microsoft Defender v4.18.2105.5 * Malwarebytes Premium v4.4.2.123-1.0.1358 * Dell SupportAssist v3.9.2.57 * Dell SupportAssist Remediation v5.4.1.14954 * Dell Update v4.2.1 * Macrium Reflect Free v7.3.5925 * TreeSize Free Portable v4.5.0
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, Toshiba KBG40ZNS256G 256 GB NVMe SSD, Intel UHD Graphics 620

Hi adi_jha30:

Just an aside, but if you want to capture a screenshot and insert the image in a forum post there are instructions in the digitaltrends article How to Take a Screenshot on a Windows PC.

I normally use the quick and dirty method by capturing the image using my PrintScreen key (PrtSc captures the entire screen; Alt+PrtSc captures the active window e.g., if I'm using TreeSize and just want to capture an image of the user interface), pasting the image in an image editor like Windows' built-in Paint program, doing a quick edit if necessary (e.g., crop, resize, add text, etc.), and then saving the image as a .png file.

If you right-click anywhere on your screen you should also see a pop-up menu with "Take Screenshot" that allows you to select the area of the screen you want to capture and then save the image (e.g., as a .png file) or copy it to the clipboard so you can paste it into an image editor like Paint.

---

@lmacri wrote:

...If you right-click anywhere on your screen you should also see a pop-up menu with "Take Screenshot" that allows you to select the area of the screen you want to capture and then save the image (e.g., as a .png file) or copy it to the clipboard so you can paste it into an image editor like Paint...

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Hi adi_jha30:

Sorry, please ignore the above instructions unless you use Firefox as your default browser.  That Take Screenshot feature was added to the right-click context menu of my Firefox browser to allow users to quickly capture images of webpages and isn't a feature of Win 10.

The MS Edge browser has a similar tool - just right click on a web page and choose Web Capture to select the area of the web page you want to save.
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64-bit Win 10 Pro v20H2 build 19042.1052 * Firefox v89.0.2 * Microsoft Edge v91.0.864.67 * Microsoft Defender v4.18.2105.5 * Malwarebytes Premium v4.4.2.123-1.0.1358 * Dell SupportAssist v3.9.2.57
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, Toshiba KBG40ZNS256G 256 GB NVMe SSD, Intel UHD Graphics 620

• Side note: I was writing these replies on a mobile device, hence the pictures were the way they were. If they aren't clear you can tell me, I'll upload screenshots from my laptop henceforth

I was quite young and it was a long time ago when I upgraded to windows 10 so I really can't remember much about the details. What I do remember is that it had popped up on notifications and I just followed all the on screen instructions to upgrade it. Also, the laptop was pretty much new, so there weren't many personal files at all. However if I do recall correctly I think that even those few files present were never wiped out entirely, so you might be correct regarding my upgrade to windows 10.

Regarding Windows Administrative Tools, it had nothing but desktop.ini before this answer. Then I ran the sfc scan, and instead of the "Windows Resource Protection did not find any integrity violations", it said "Windows Resource Protection found corrupt files and successfully repaired them" , and gave some details for online repairs

After this when I opened Administrative Tools, it did show me a list of applications as you had mentioned

These are all the files in it, there is no Dell SA Remediation.

I haven't tried deleting system recovery as I wasn't sure if it was safe to do so. If you could confirm, should I try to delete it using treesize?

Thank you

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@adi_jha30 wrote:

...Then I ran the sfc scan...it said "Windows Resource Protection found corrupt files and successfully repaired them" , and gave some details for online repairs...

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Hi adi_jha30:

It's good news that System File Checker (sfc /scannow) was able to repair your corrupted Win 10 system files.  You might also want to run the DISM commands as instructed in the ghacks.net article Use DISM to Fix Issues SFC Can't. Start with DISM /Online /Cleanup-Image /CheckHealth and DISM /Online /Cleanup-Image /ScanHealth first - if these diagnostic scans do not find any further corruption that needs to be repaired there is no need to run DISM /Online /Cleanup-Image /RestoreHealth.  Note the suggestion in that ghacks.net article to create a full disk image with Macrium Reflect or some other disk imaging software first if you need to perform a repair with the RestoreHealth command.

ASIDE: If you run the command findstr /c:"[SR]" %windir%\logs\cbs\cbs.log >%userprofile%\Desktop\SFCdetails.txt in an elevated command prompt this will extract the details of your sfc /scannow repair from CBS.log and save it to a file called SFCdetails.txt on your desktop. Instead of re-typing this long command you can copy and paste it into your command prompt. See Analyze the Log File Entries That SFC.exe Generates in Windows for further information.

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...I haven't tried deleting system recovery as I wasn't sure if it was safe to do so. If you could confirm, should I try to delete it ...

---

I would advise against deleting your 72.5 GB C:\System Recovery folder for now until you're certain it's safe to do so. You reported that this protected folder is increasing in size over time and your first screenshot <here> indicates that new files are still being created inside that folder. If you delete that protected folder before determining exactly what is creating those files you could do more harm than good.

You said you tried uninstalling Dell Backup and Restore (DBaR) after your upgrade from Win 8.1 to to Win 10, and that when the uninstall failed you manually deleted associated folders in C:\Program Files and C:\Program Files (x86) to try and remove it. Unfortunately, there may still be DBaR services or executable files in other locations (e.g., the hidden C:\ProgramData folder, C:\Windows\System32, etc.) loading at boot-up or even scheduled DBaR tasks being triggered by the Windows Task Scheduler that could start throwing errors or causing other unexpected problems if you force a deletion of the protected C:\System Recovery folder without cleaning up the remnants of DBaR first.

You likely removed the native uninstaller for DBar when you deleted the DBaR folders in C:\Program Files and C:\Program Files (x86), but did you try the 30-day trial of Revo Uninstaller Pro as I suggested <above> to see if could detect and remove any orphaned DBaR files and registry entries remaining on your computer?

I've never used Dell Backup and Restore (DBaR) so I've asked one of the users in this forum who is familiar with this software if they can confirm that your C:\System Recovery folder is the location where DBaR backups are stored. Hopefully they will be able to provide some insight on the best to safely remove this folder.
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64-bit Win 10 Pro v20H2 build 19042.1052 * Firefox v89.0.2 * Microsoft Defender v4.18.2106.6 * Malwarebytes Premium v4.4.2.123-1.0.1358 * Dell SupportAssist v3.9.2.57 * Dell SupportAssist Remediation v5.4.1.14954 * Dell Update v4.2.1 * Macrium Reflect Free v7.3.5925 * TreeSize Free Portable v4.5.0
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, Toshiba KBG40ZNS256G 256 GB NVMe SSD, Intel UHD Graphics 620

• For some reason, I'm denied permission to upload images now

When i ran the first two steps of DISM, it gave me no error, so i skipped the third step

Upon running "findstr /c:"[sr]" %windir%\logs\cbs\cbs.log >%userprofile%\desktop\sfcdetails.txt", it gave me this:

'Cannot Open Desktop\sfcdetails.txt'

I did get the revo uninstaller pro 30 day trial and did the following:

• went to forced uninstall and typed in the keyword thing 'dell backup and recovery'
• put the 'moderate' setting and pressed enter 

It gave me a screen showing the files it found. MyComputer>HKEY_LOCAL_MACHINE>SOFTWARE>WOW6432NODE>Dell Backup and Recovery

In this there are various files and I'm really not sure what I should be deleting, and I can't upload a picture and ask about it. 

How should I proceed from here, and is there any reason i can no longer upload images?

I'm sorry for not posting back for this long, something had come up.

I ran the sfc command you posted and it did save a file called sfcdetails.txt and I was able to open it

I ran revo pro on advance and found some files, all of which I deleted after creating a restore point. It's been two days since I deleted it and I don't see any difference in my laptop. It still is draining space ( When I turned it in this time it started at 21.6GB, and it is now at 20.1GB about 40 minutes after) and I'm not sure why since I'm fairly confident DBaR should be gone.

One thing I thought I should point out is that on my support assist before the option of system repair wasn't there at all, however now it has appeared, but still isn't enabled, so I don't think it has anything to do with it, but I thought it was worth mentioning.

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@adi_jha30 wrote:

I ran revo pro on advance and found some files, all of which I deleted after creating a restore point. It's been two days since I deleted it and I don't see any difference in my laptop. It still is draining space ( When I turned it in this time it started at 21.6GB, and it is now at 20.1GB about 40 minutes after) and I'm not sure why since I'm fairly confident DBaR should be gone.

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Hi adi_jha30:

Could you please confirm that these files are still being created in a folder called C:\System Recovery folder? If you're certain you removed the last traces of the old Dell Backup and Recovery program then I'm not sure what could be creating new files in that location, unless that folder is associated with a different backup program that was installed either before or after you upgraded from Win 8.1 to Win 10.

As previously noted, I have a newer Inspiron 5584 computer that never had the old Dell Backup and Recovery installed and was only able to find hidden folders at C:\Recovery, C:\ProgramData\Dell\SARemediation\ and C:\System Volume Information (the folder where my built-in Win 10 System Restore feature stores its own system restore points). I also use a disk imaging program called Macrium Reflect Free  but I have chosen to save all the full disk images created by this software on an external USB hard drive at D:\Macrium Backups.

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One thing I thought I should point out is that on my support assist before the option of system repair wasn't there at all, however now it has appeared, but still isn't enabled, so I don't think it has anything to do with it, but I thought it was worth mentioning.

---

If your System Repair setting just reappeared that's the exact opposite of what I would expect, since  Dell recently removed the System Repair setting from SupportAssist at Options (gear icon) | Settings | System Repair as a temporary safety precaution. See Dell employee NikhilKiroula's 15-Jul-2021 post in Problems with SupportAssist 3.10.0.47 that states "We have removed System Repair settings from SA from 3.9.2 release onwards due to some major issue with SA OS Recovery tool during partitioning process". If you open Support Assist and go to Option (gear icon) | About does it show that you have the latest v3.10.0.47?

Under normal circumstances that System Repair setting will only be shown in your SupportAssist interface if the SupportAssist OS Recovery tools have been installed.  Please view the first three images in my 07-Jul-2021 post <here> and look for any of the following to see if the SupportAssist OS Recovery tools are installed:

• A SupportAssist OS Recovery settings manager (control panel) at Control Panel | System and Security | SupportAssist OS Recovery (note: if you can find this settings manager, double-click to run and go to Settings | System Repair to see if System Repair is enabled as shown in image below. Unfortunately, this settings manager might currently throw an error message or warning similar to the image I posted on 16-Jul-2021 in DELLKaren's Problems with SupportAssist 3.10.0.47 if you have SupportAssist v3.9.2 or higher).
• A program called Dell SupportAssist Remediation listed at Control Panel | Programs | Programs and Features, or
• A service called Dell SupportAssist Remediation at Start | Windows Administrative Tools | Services, or

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I ran the sfc command you posted and it did save a file called sfcdetails.txt and I was able to open it

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Glad to hear you were finally able to extract your System File Checker (SFC) log sfcdetails.txt from CBS.log. The part of the log you posted is dated 2021-07-24. so I assume you ran sfc /scannow again today and it didn't find any further issues.

Just note that if you want to see what system files were repaired by SFC on or around 09-Jul-2021 when your scan reported "Windows Resource Protection found corrupt files and successfully repaired them" then you'll have to look for the section of the sfcdetails.txt log dated ~ 2021-07-09. If the log doesn't go back that far then those old scan results have probably been overwritten in CBS.log, since CBS.log has a fixed file size to prevent it from growing too large and will delete older entries to make room for new ones. This is just FYI only - it sounds like sfc /scannow was able to successfully repair your system files and DISM /Online /Cleanup-Image /CheckHealth and DISM /Online /Cleanup-Image /ScanHealth found no further problems, so it's not essential for me to see your SFC scan log from 09-Jul-2021.
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64-bit Win 10 Pro v20H2 build 19042.1110 * Firefox v90.0.2 * Microsoft Defender v4.18.2106.6 * Malwarebytes Premium v4.4.3.125-1.0.1387 * Dell SupportAssist v3.10.0.47 * Dell SupportAssist Remediation v5.4.1.14954 * Dell Update for Windows 10 v4.2.1 * Macrium Reflect Free v7.3.5925 * TreeSize Free Portable v4.5.1
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, Toshiba KBG40ZNS256G 256 GB NVMe SSD, Intel UHD Graphics 620

Each time I've opened the System Recovery folder it has shown Size:112.1GB and Allocated:72.5 GB, and it's stayed like that for quite a while now. The last backup made on it was on the 1st of July, one day before I uninstalled Dell Back-up and Recovery, so I don't think it's increasing in size at the moment, however the laptop space in C fluctuates none the less, it goes down by a GB in minutes and sometimes randomly goes back up by a GB or more, but overall the rate of it going down in space is much faster and it loses a couple hundred MB each time I open it.

My Support assist is the latest version matching the one you sent.

Of the three points you have mentioned, none of them seem to be there. There is no OS recovery at control panel, neither is SA Remediation present in Programs and features. When I checked Services in Administrative Tools, I found a file called Dell Support Assist, but none of SA Remediation.

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@adi_jha30 wrote:

Each time I've opened the System Recovery folder it has shown Size:112.1GB and Allocated:72.5 GB, and it's stayed like that for quite a while now. The last backup made on it was on the 1st of July, one day before I uninstalled Dell Back-up and Recovery, so I don't think it's increasing in size at the moment ...

...There is no OS recovery at control panel, neither is SA Remediation present in Programs and features. When I checked Services in Administrative Tools, I found a file called Dell Support Assist, but none of SA Remediation.

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Hi adi_jah30:

I have no way of knowing what will happen if you delete the 70+ GB folder at C:\System Recovery folder, since your original uninstall of Dell Backup and Restore (DBaR) in early July did not run to completion before you re-booted your machine and began manually deleting remnants in C:\Program Files, C:\Program Files (x86), etc. I'm hoping the the trial version of Revo Uninstaller Pro was able to remove the last remnants but even that isn't guaranteed since scanning for orphaned files and registry entries this way (i.e., without allowing Revo Uninstaller to run the built-in uninstaller first) is only as accurate as the key phrases (e.g., "Dell Backup and Restore", "DBaR", etc.) you scanned for. The fact that System File Checker (SFC) found and repaired corrupted Windows 10 system files, plus the fact that I'm not 100% certain that your C:\System Recovery folder was even created by DBaR, adds to my concerns.

I wouldn't recommend you try to delete that C:\System Recovery folder unless you have an emergency recovery plan in place (e.g., you've created bootable recovery media and saved a full disk image to an external hard drive using third party software like Macrium Reflect Free) since there's always a possibility that removing that folder could leave you with an unstable or unbootable system. I'm not a fan of Dell's SupportAssist OS Recovery tools (SupportAssist Remediation / System Repair) and don't use them on my Inspiron 5584 but even that buggy Dell bloatware (which is not installed on your Inspiron 3542) might come in handy some day.

If your computer is behaving erratically because you're low on free disk space and Windows Disk Cleanup (Start | Windows Administrative Tools | Disk Cleanup - see hints in the MS support article <here>) doesn't fix the problem then you'll have to decide for yourself if you want to accept the risk and delete that C:\System Recovery folder without an emergency recovery plan in place. As I stated <above> on 12-Jul-2021, you might not be able to delete the C:\System Restore folder with TreeSize Free if it's a protected folder (i.e., if DBaR created that folder with restricted read/write/delete permissions so the folder can't be accidentally deleted, even by someone with Administrator rights). If you decide to delete this folder and find you don't have sufficient permissions you might have to try an "unlocker" utility.

I've never used one of these unlocker utilities so I can't make a personal recommendation but LockHunter Portable v3.4.2 (rel. Apr 2021, see the ghacks.net 2019 review <here>), ThisIsMyFile Portable v3.73 (rel. May 2021, see the 2017 ghacks review <here>) or Cedric Collomb's Unlocker Portable v1.9.2 (rel. May 2013, no longer actively supported but apparently still a popular choice - see the Raymond.CC 2017 review <here> and ITIGIC 2020 review <here>) might be able to unlock your C:\System Recovery folder if required. If available, I usually download the portable build instead of the "regular" installer build since portable builds will save disk space on your hard drive if they are saved to and run from a removable USB thumb drive.  In most cases the portable builds also tend to be bundled with fewer unwanted PUPs (potentially unwanted programs) like browser toolbars, etc.
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64-bit Win 10 Pro v20H2 build 19042.1110 * Firefox v90.0.2 * Microsoft Defender v4.18.2106.6 * Malwarebytes Premium v4.4.3.125-1.0.1387 * Dell SupportAssist v3.10.0.47 * Dell SupportAssist Remediation v5.4.1.14954 * Dell Update for Windows 10 v4.2.1 * Macrium Reflect Free v7.3.5925 * TreeSize Free Portable v4.5.1
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, Toshiba KBG40ZNS256G 256 GB NVMe SSD, Intel UHD Graphics 620