KB5070762 and KB5070773: boot_drive_inaccessible

Hi to everyone.
I saw in some other threads that these updates caused problems of some kind.
Mine is that when I try to install KB5070762 or KB5070773 and system reboots to apply the update I receive a "boot_device_inaccessible (error 0x7b)". Then I force system reboot pushing power button twice and system repair rolls back automaticallu my Windows 11 to 26200.6584 version and everything run fine.
I ran sfc /scannow, dism with restorehealth with no luck. I also tried to use "resolve problem with Windows updates" but the result is alway the "boot_device_inaccessible". I updates all my drivers, I don't use secure boot. I tried to reset windows update (stopping services and deleting SoftwareDistribution folder), tried to download file update from Microsoft catalogue but the result is still the same. I also tried to upgrade my system with an ISO containing the KB5070773 update (made with UUP dump) but the result is the same: on the first reboot Windows seems not to find boot drive and I received the error on the object.

Any help will be highly appreciated.

Thanks a lot,
Michele.

Turn Secure Boot on and try again.

Rollback_Jockey said:

Turn Secure Boot on and try again.

Click to expand...

I'd already tried but I did it again: same result.
I tried to do a clean boot, no luck.
I really don't know what else to try.

Please run the V2 log collector > post a share link into the newest post

zbook said:

Please run the V2 log collector > post a share link into the newest post

BSOD - Posting Instructions

BSOD - Posting Instructions This will show you how to help provide needed information about your system and dump files. It will not contain any personal or sensitive information about you or your data. To get better help with your Windows BSOD issue, please read these instructions and follow...

www.elevenforum.com

Click to expand...

Ok, I will use log collector as soon as I can. Obviously I will run it when system is on, in other words after the stop_error (boot_drive_inaccessible) and when system restore has completed its job, ok? Or is there any other way to generate it?
Besides: what do you mean when you write "post a share link into the newest post"?
Thanks a lot,
Michele.

@myksto

One thing to try first. Boot a Windows install disk / WinPE system and get into command mode (from a Windows install device choose repair system etc) and then use bcdboot to re-install the boot loader. (Check the partition letters via diskpart and assign if necessary).

E.G if the EFI partition is S and the installed Windows partition is C

bcdboot c:\windows /s S: /f UEFI

cheers
jimbo

myksto said:

I updates all my drivers, I don't use secure boot. I tried to reset windows update (stopping services and deleting SoftwareDistribution folder), tried to download file update from Microsoft catalogue but the result is still the same. I also tried to upgrade my system with an ISO containing the KB5070773 update (made with UUP dump) but the result is the same: on the first reboot Windows seems not to find boot drive and I received the error on the object.

Click to expand...

myksto said:

I tried to do a clean boot, no luck.

Click to expand...

Whenever you can boot the computer to one of these then run V2 > post a share link

Normal boot
Clean boot
Selective boot
Safe mode






Perform a hard reboot > report findings





Perform a startup repair > search for > LogFiles\Srt\SrtTrail.txt > post a share link




Find a flash drive that you can format and a working Windows computer.

Create a bootable Windows 11 Media Creation Tool (MCT) (Windows iso)

jimbo45 said:

@myksto

One thing to try first. Boot a Windows install disk / WinPE system and get into command mode (from a Windows install device choose repair system etc) and then use bcdboot to re-install the boot loader. (Check the partition letters via diskpart and assign if necessary).

E.G if the EFI partition is S and the installed Windows partition is C

bcdboot c:\windows /s S: /f UEFI

cheers
jimbo

Click to expand...

Hi and thanks for your reply.
Please correct me if I'm wrong: Windows boots up with no problem after system has been automatically restored by windows system restore so, why should I re-install the boot loader? Evidently something goes wrong when KB5070773 is installed but my Windows installation is fine.

zbook said:

Whenever you can boot the computer to one of these then run V2 > post a share link

Normal boot
Clean boot
Selective boot
Safe mode

Perform a Clean Boot in Windows 11 to Troubleshoot Software Conflicts

This tutorial will show you how to perform a clean boot to start Windows 10 or Windows 11 using a minimal set of drivers and startup programs for troubleshooting application conflicts. Troubleshooting Windows can be a complex process due to the many different drivers, settings, and programs...

www.elevenforum.com

Boot to Safe Mode in Windows 11

This tutorial will show you how to boot Windows 11 into normal mode, Safe Mode, Safe Mode with Networking, or Safe Mode with Command Prompt. Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default...

www.elevenforum.com

Perform a hard reboot > report findings

Boot to Advanced Startup (WinRE) in Windows 11

This tutorial will show you how to boot to the advanced startup (WinRE) in Windows 11. The Windows Recovery Environment (WinRE) is a companion operating system installed alongside Windows 11, typically in a separate partition, that can help with troubleshooting, recovery, or booting from...

www.elevenforum.com

Perform a startup repair > search for > LogFiles\Srt\SrtTrail.txt > post a share link

Boot to Advanced Startup (WinRE) in Windows 11

This tutorial will show you how to boot to the advanced startup (WinRE) in Windows 11. The Windows Recovery Environment (WinRE) is a companion operating system installed alongside Windows 11, typically in a separate partition, that can help with troubleshooting, recovery, or booting from...

www.elevenforum.com

Find a flash drive that you can format and a working Windows computer.

Create a bootable Windows 11 Media Creation Tool (MCT) (Windows iso)

Download Official Windows 11 ISO file from Microsoft

This tutorial will show you how to download an official Windows Server or Windows 11 64-bit or ARM64 ISO file from Microsoft. Microsoft provides ISO files for Windows Server and Windows 11 to download. You can use these ISO files to clean install or in-place upgrade Windows 11. The Flight Hub...

www.elevenforum.com

Download Windows 11

Create Windows 11 Bootable USB Installation Media

This tutorial will show you how to create a bootable USB flash drive used to install Windows 11 with UEFI support. You can use a Windows 11 installation USB flash drive to clean install, upgrade, reset, or repair Windows 11. The installation USB can also be used as a recovery drive to boot to...

www.elevenforum.com

Click to expand...

I and thanks for reply.
Please help me understand: I should generate a report with V2.Log.Collector with normal and clean and selective and safe boot? Each of them?
I mean, Windows boots up without any problem because automatic system restore brings Windows to a functioning state. System restore automatically cancel any modifcation made by KB5070773 and my Windows 26200.5684 starts up fine.

myksto said:

I and thanks for reply.
Please help me understand: I should generate a report with V2.Log.Collector with normal and clean and selective and safe boot? Each of them?
I mean, Windows boots up without any problem because automatic system restore brings Windows to a functioning state. System restore automatically cancel any modifcation made by KB5070773 and my Windows 26200.5684 starts up fine.

Click to expand...

If you can boot normal then that is the optimal time to run V2.
If it can't boot normal then try clean boot.
If it can't clean boot then try safe mode.

Here is the report: Dropbox
I also tried to install KB5067076 (26200.7019) and the result is always the same: boot_drive_inaccessible. I won't be able to install updates any longer???
Hope to hear good news from you.

Thanks.

The event logs were in a foreign language and could not be scanned or read.

How come the computer is using volume activation?