XPS 8930, Windows 11 upgrade failure

that is unfortunate and Dell should not have charged you to roll back to Win 10 in the 1st place.  I am another user and do not work for Dell.

if I were in a similar situation wanting to switch between Win 10 and 11 on a Dell, I would download a Win 11 or Win 10 media creation tool and do a clean OS install which means clean wipe of hdd and erase all programs preinstalled and all personal data.  I would not download any Dell driver for this model because Win11 or 10 would automatically install most of the drivers compatible with this PC. even the graphics card driver can be automatically updated by Win 11 or 10 sometime after clean OS install. if there are a few straggler device drivers that are not installed by OS automatically, those are usually insignificant.

this would enable a user to run most email app and gain 99% function of the PC.  one really does not need any of the Dell drivers to use the PC.  and some of the Dell drivers are just bloatware.

@peterfranklee 

Windows 11 works fine on most all Dells from 2006 to now.  However older models like optiplex GX620 are not supported.  Dell only supports the OS that shipped with the unit.  This means either way you are not supported.   Which brings us to clean install of windows 11 secure boot OFF, SATA OPERATION AHCI, using USB 2.0 FAT32  Sandisk FIT drive.

SanDisk SDCZ33-032G-A11 B008C7C5OC

Download windows11

Once this is done there are a few drivers to add but in general you only need chipset and intel management and audio OEM drivers.  You do NOT need support assist or the other nonsense.  Be advised that Capsule Updates in F2 Bios should be turned OFF or Microsoft will push a bios update via windows update that might brick your PC.

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@peterfranklee wrote:

1. Purchased Dell XPS (XPS 8930) loaded with Windows 10.

2. Under warranty, took the Microsoft Windows 11 Upgrade from Windows 10

3. Unable to use any email (Gmail and MS Office 365.

4. IBM USA ... determined my new Dell XPS 8930 drivers were in-compatible and I should call Dell.

 

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1. Good

2. That is fine. Yes, the Windows key embedded in the XPS-8930 motherboard works for either Windows-10 or Windows-11 . (period). You are allowed to run either and either will Activate as legit. 

3. Simply a Config problem for the Gmail Account in Outlook profile (or whatever client you are using). There are settings in Gmail and Google Account that must be correct. Additionally, you now need a "App Password" to use Gmail in Outlook (and other clients).

4. This was an incorrect determination.

The rest of your message is you being further misled in various ways. 

I have had a similar issue, twice I tried to upgrade my XPS8930 to Windows 11 and ran into the same issue with accessing external USB hard drives (i.e. backup drives).  Accessing the drives is very unstable.  I reached out to Dell Support and all they wanted was a credit card to charge the ~$150 before they would even look at my system that was on extended warranty.  But that's not the real issue, the issue is that there's something wrong with the drivers.

Instead of upgrade to Windows 11 from within Windows 10, try a clean Win11 install from scratch, if not already done.

@DellUser61  Exactly what do you mean "Accessing the drives is very unstable"?

It's possible Win 11 is turning off USB devices to save power.  Open Device Manager and expand the 3 USB lists. Double-click each entry and if it has a Power Management tab, uncheck the box "Allow PC to turn off this device". Repeat for all USB devices with a Power Management tab. Exit DM when done.

Then go to the active Power plan's Advanced Settings screen and disable PCI-e Link State Management, and, if these are available options, disable USB Selective Suspend and Hybrid Sleep. Save the changes to the Power plan and reboot.

See if these changes help with your USB drive issues...

You need to enable the TPM in the Bios on your Dell XPS 8930. Windows 11 will now update 😊