XPS 15 7590, Memory Integrity on causes an inaccessible boot device

Thanks for your informative outro @Mat72 . What a frustrating experience

Definitely NOT solved...

Bios version: 1.20.0 

And BTW, this issue is definitely not solved at all.

EDIT: I just saw that it was already tested and still not solved.

Today I got a new BIOS update. Did anyone try to update to 22H2 after that update? 

Thanks for the detailed information @Mat72 - much appreciated.

Will be following your same approach - downgrade to Windows 10 on the XPS. Then replacing the XPS with something not from Dell. If they can't be bothered supporting their "premium" models properly, then I'm not going to waste my money on them.

Matt, thank you for all the time you put into this. It's really a shame the way Dell handled this. I will try your workaround but I am a little unclear on what you did. I'm not that experienced working with the BIOS. What exactly is AZURE AD, and how do I disable these settings making sure they aren't connected to AZURE AD?

I've been using Dell since 2002. I've convinced countless friends to purchase Dells and even convinced our office to start using them. That has come to an end. In fact this may be my last Microsoft machine.

It is absolutely ridiculous that we are now into March of 2023 when this was reported back in September of 2022. Clearly Dell is hoping we all go away and just give up. They have no intention of fixing this problem. when it's clearly affecting only their machines and only this model. I feel ripped off and betrayed.

Seems I learned all this stuff the hard way.   Here is the error I get when I disable VT-d and run Windows Sandbox.

'ba502d87-0dbd-4434-bd70-87067eba0d02' Microsoft GPU Partition (Instance ID 88A07832-A1C2-498C-95F9-66C4C6A0AA17): Failed to Power on with Error 'The system cannot find the path specified. ' (0x80070003). (Virtual machine ID BA502D87-0DBD-4434-BD70-87067EBA0D02)

I putting this here, in case anyone else has the issue.

This is very disappointing, GPU Partitioning is the biggest feature of the new Sandbox and VM's!

Can anyone else confirm they are getting these errors too?

Has anyone been able to enable VT-d?

I am currently running following, as Ive mention earlier

XPS 15 7590 with latest Bios 1.20.0

W11 22H2 Installed

Secure Boot OFF

2 Virtualisation settings ON

I have, this morning (Wednesday 15/3/23), installed the latest W11 updates successfully

2023-03 Cumulative Update for Windows 11 Version 22H2 for x64-based Systems (KB5023706)

2023-03 .NET 6.0.15 Update for x64 Client (KB5024670)

I have restarted the PC as follows

Secure Boot ON

2 Virtualisation settings ON

The usual critical error BSOD occurs

Therefore today's W11 updates have not resolved this issue

(Turning Secure Boot OFF again - the PC will start successfully - as noted earlier in the thread)

M

Can report the same as @Greencat1 

Could anyone please explain what does it mean "...they cannot capture these due to the age of the model...."? I bought this laptop about 2 years ago and the only thing I have seen it is just problems with it - freezing problem, color banding problem with windows 11 which is still unsolved as Dell blames Intel and Intel blames Dell, and now this problem which is absolutely unbelievable. Everyone responsible for this laptop in the market should take responsibility, because this laptop costed us almost £2000 and is supposed to be used for professional use.
Personally, I will never ever buy again any dell product and especially when as a user I read this kind of comments. Very sad

I stumbled across your post because I was having the same issues after installing the 1.20.0 BIOS update. I booted into an Ubuntu USB, and the NVMe drive was missing altogether. Switching to AHCI mode from RAID allows the drive to reappear in Ubuntu, but would have to reinstall Windows due to driver issues. Luckily, turning off VT for Direct I/O fixed it for me. This is clearly not an issue with Windows if the drive completely disappears from Linux as well. The BIOS does show that there is still a drive installed, its just not being presented to the OS.

Same problem here, XPS 7590, Windows 11 22H2, BIOS 1.20. Enabling Windows Sandbox makes computer not bootable after restart. Inaccessible boot device BSOD.

Turning off VT for Direct I/O allows me to boot, but I would like to leave it on. 

You can also put Secure Boot to OFF into the BIOS, then you can leave VT for Direct I/O to ON.