Chelly601
2 Bronze

Inspiron 7786, no bootable devices found, #3

Hello,

I am having this same exact issue with my Inspiron 7786. No Bootable Devices Found.

@AnnoraBorealis @NJoy Were you able to resolve?

Thanks in advance.

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14 Replies
ejn63
7 Gold

Re: Inspiron 7786, no bootable devices found, #3

Power up and go into Setup (F2).  What shows in your drives listing?

 

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Chelly601
2 Bronze

Re: Inspiron 7786, no bootable devices found, #3

@ejn63 

This is what shows when I go to F12

5C84E8C7-21A6-4388-B989-1814313ABEFD.jpeg

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ejn63
7 Gold

Re: Inspiron 7786, no bootable devices found, #3

You're going to need to post as text or as a link, or wait until a moderator approves the image.  We cannot see the image you've posted (and that can take some time).

 

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Chelly601
2 Bronze

Re: Inspiron 7786, no bootable devices found, #3

@ejn63  In F12 Menu:

Boot Mode is set to: UEFI; Secure Boot: OFF; PTT is ON

Other Options:

BIOS Setup

Device Configuration

BIOS Flash Update

Diagnostics

Change Boot Mode Settings

Exit Boot Mode and Continue 

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ejn63
7 Gold

Re: Inspiron 7786, no bootable devices found, #3

Did you at some point turn secure boot off?  It should be ON by default unless you changed it.

 

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Clintlgm
4 Beryllium

Re: Inspiron 7786, no bootable devices found, #3

Well is your in UEFI mode Secure Boot should be turned ON, I think somehow your BIOS SATA is set to RAID and your OS does not have the RST driver installed.

What did you do just before this happened? if nothing then your hard drive/SSD may have failed, or the physical connection has been disconnected.









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Inspiron 13 -7386
16GB RAM
Samxung 970 Evo 1TB SSD 2nd SSD 512 GB Hynix


Precision 3440 SFF CTO BASE, VIntel Xeon W-1250 (6 Core, 12M cache, base 3.3GHz, up to 4.7GHz) 16GB 2X8GB DDR4 2666MHz or 2933MHz (2933MHz requires Intel Core i7 or above) UDIMM Non-ECC Memory Windows 10 Pro for Workstations
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Chelly601
2 Bronze

Re: Inspiron 7786, no bootable devices found, #3

@Clintlgm  I enabled secure boot again. Previously disable to troubleshoot. 

SATA operation is currently set to RAID On. Should it be Disabled or AHCI? 

One day I booted my the laptop and it just ran a system scan in Dell SupportAssist instead of booting up to Windows. 

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Clintlgm
4 Beryllium

Re: Inspiron 7786, no bootable devices found, #3

There is your problem you can't just turn it on and off.

So now you'll have to fix your OS, to do this you'll probably need to Clean Install your OS Windows 10

A workaround is to, If you have a Macrium Reflect Drive Image you can Restore it to solve your issue?

So when you Clean install, if your BIOS will allow you to switch from RAID to AHCI, do it before you start the clean install

So if your BIOS will not allow the switch from RAID to AHCI, then you will have to load the IRST driver during the Install. During the install, you will arrive a the part that asks you to select a volume to install Windows too. Presently you won't see your HardDrive/SSD. However, you will see a link that says I have a driver or something like that. At that point, you will browse to the IRST Driver that you have downloaded to a USB thumb drive, Yep the same on that you are installing windows with. Once you select the RST f6flpy-x64 it will install and then your HardDrive/SSD will be available to install windows to.

Before you start, Remove your HardDrive/SSD and using a USB to SATA or USB to m.2 NVME adapter connect tit to another computer and recover any data that you can't afford to lose.

Then there is this old post in Windows Ten Forum https://www.tenforums.com/customization/104898-switch-raid-ahci.html

I believe since you can not boot to windows you will not be able to accomplish the switch in this tutorial

You can Goggle on other methods to recover your HardDrive/SSD back to RAID or switch to AHCI but I don't think there is any way without being able to boot into windows. 









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- Please "Accept as Solution" posts that are a solution.

Inspiron 13 -7386
16GB RAM
Samxung 970 Evo 1TB SSD 2nd SSD 512 GB Hynix


Precision 3440 SFF CTO BASE, VIntel Xeon W-1250 (6 Core, 12M cache, base 3.3GHz, up to 4.7GHz) 16GB 2X8GB DDR4 2666MHz or 2933MHz (2933MHz requires Intel Core i7 or above) UDIMM Non-ECC Memory Windows 10 Pro for Workstations
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Chelly601
2 Bronze

Re: Inspiron 7786, no bootable devices found, #3

@Clintlgm I have downloaded the OS onto a usb thumb drive using Dells website / Dell OS Recovery Tool from my desktop and entering the service tag for the laptop with the issue.  When I boot up the laptop with the thumb drive inserted, it loads OS Recovery. The only choices that I can click on are: scan hardware, backup, and reset/update. There is a repair option but that is grayed out. When I choose reset/update, I get a message that says “We are unable to detect any disks that can be utilized for a cloud restore”

Should I re-try all of the above after switching from RAID to AHCI? 

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