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Can't update to any 22H2 build from Windows 11 22000.856, error 0xc0000005 from unbcl.dll

Anonymous
2022-08-13T13:46:15+00:00

Hi, I'm on a Ryzen 5600x equipped desktop PC. I could update any other PC to 22H2 and just really can't figure out why this PC doesn't. I always updated to any 21H2 build with no issues, but since the first 22H2 builds I never have been able to, including lately with Release Previews. I get 0xc0000005 error, created by unbcl.dll module. It always occurs when the installation from SetupHost.exe begins, both updating with ISO and Windows update.

I already tried cleaning Windows Update and other common procedures you suggested on similar cases in the past.

I'm attaching a folder containing setupact.log and diagerr.xml, and a dump.
22H2 update error logs

Tell me if anything more is needed, thanks in advance for the help.

EDIT: In the end, only reinstalling Windows I solved the issue šŸ¤·ā€ā™‚ļø

Windows Insider program | Windows Insider preview | Install, activate, and Windows update

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  1. Anonymous
    2022-08-19T20:44:16+00:00

    Why the VM question? I mean, I see no indication about that in that row.. the machine I'm trying to update is on release preview.

    Because of the log.

    For some unkown reason to me it shows the setup host to be Dev build 25179

    Oh, I think that it's because that time I tried to update to that dev build, instead of the release preview.

    Maybe there are remnants in the registry or something.

    Not sure if this will help but try these commands from an elevated cmd prompt

    dism.exe /online /cleanup-image /revertpendingactions

    dism.exe /online /Cleanup-Image /StartComponentCleanup

    Delete the contents of C:\Windows\SoftwareDistribution*Download*

    Restart and try to update again.

    Tried those already too, sadly

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  2. Anonymous
    2022-08-19T19:15:33+00:00

    I'm no expert, I have no idea how to solve issues from reding logs but something caught my attention.

    Are you using a VM and the host machine is on Dev or what's up with this?

    Image

    Why the VM question? I mean, I see no indication about that in that row.. the machine I'm trying to update is on release preview. When I did the setup I wasn't running any VM, but I used VMware in the past, and I use subsystem for android and wsl.

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  3. Anonymous
    2022-08-19T19:06:19+00:00

    I'm no expert, I have no idea how to solve issues from reading logs but something caught my attention.

    Are you using a VM and the host machine is on Dev or what's up with this?

    Image

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  4. Anonymous
    2022-08-19T16:49:11+00:00

    Like I thought, it solved nothing. I really tried all of those already in the past. I tried again for being sure but nothing has changed. Please look into the logs I provided šŸ„²

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  5. Anonymous
    2022-08-15T05:03:37+00:00

    Hello Piereligio,

    Welcome to Microsoft Community.

    I understand that you cannot to update to any internal version of 22H2.

    Please refer to the following methods:

    1.Switch memory slots

    Turn off the computer and power, and insert the memory module into another slot.

    2.Fix Registry

    Press ā€˜Windows + Rā€™ at the same time, type regedit, open the registry.

    find 

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\current version\Windows

    Change the value of LoadAppInit_DLLs to 0.

    Restart windows explorer in task manager

    Then restart the computer and check if the problem still exists.

    Disclaimer: Generally, modifying registry subkeys or work group is intended for advanced users, administrators, and IT Professionals. It can help fix some problems, however, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For further protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click here **** to view the article.

    3.SFC Scan and Repair

    Type cmd in the taskbar search, run as Administrator.

    Type 

    sfc /scannow

    hit Enter key 

    Dism /Online /Cleanup-Image /ScanHealth

    hit Enter key 

    Dism /Online /Cleanup-Image /CheckHealth

    hit Enter key 

    Dism /Online /Cleanup-Image /RestoreHealth

    hit Enter key

    Disclaimer: Running Microsoft Safety Scanner can help you check if the system is disturbed or malicious software exists. To avoid any trouble for you, please follow them step-by step and back up all your personal files first to ensure you do not lose data.

    I am looking forward to your further reply.

    Best regards,

    Bob8 | Microsoft Community Support Specialist.

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