Win 11 24H2 will not install

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Hi,
I have an Acer Spin SP314-54N V1.13.
Microsoft has tried twice to install 24H2 and it fails.
After a while the update disappears from my computer.
History of the laptop:
Win 10 upgraded to Win 11 home. Then upgraded to Win 11 Pro.
Here is the result when I run SetupDiag.

Microsoft is useless. I couldn’t find this error on their web site.

I would appreciate any thoughts on what might be going on. My wife’s LG installed 24H2 without any issues.
Thanks,
Michael

HKEY_LOCAL_MACHINE\SYSTEM\Setup\SetupDiag\Results
ProfileName REG_SZ FindAbruptDownlevelFailure
ProfileGuid REG_SZ 55882B1A-DA3E-408A-9076-23B22A0472BD
SetupDiagVersion REG_SZ 1.7.0.0
DateTime REG_SZ 03/16/2025 06:59:01
FailureData REG_SZ Error: SetupDiag reports abrupt down-level failure.Last Operation: Error: 0xC1900208 – 0x4000D LogEntry: 2025-03-16 04:25:25, Error MOUPG CSetupManager::ExecuteInstallMode(1084): Result = 0xC1900208 Refer to “https://docs.microsoft.com/en-us/windows/desktop/Debug/system-error-codes” for error information.
FailureDetails REG_SZ ErrorCode = 0xC1900208, ExCode = 0x4000D
HostOSVersion REG_SZ 10.0.22631
TargetOSVersion REG_SZ 10.0.26100.3476 (ge_release_svc_prod1.250305-1758)
UpgradeStartTime REG_SZ 3/16/2025 4:03:01 AM
UpgradeEndTime REG_SZ 3/16/2025 6:58:47 AM
UpgradeElapsedTime REG_SZ 02:55:46
RollbackStartTime REG_SZ 1/1/0001 12:00:00 AM
RollbackEndTime REG_SZ 1/1/0001 12:00:00 AM
RollbackElapsedTime REG_SZ 00:00:00

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https://www.anoopcnair.com/windows-upgrade-failed-error-0xc1900208/

Can you see if there is an compatibility block in those file locations?

Susan Bradley Patch Lady/Prudent patcher

2 users thanked author for this post.

Michael1950, satrow

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If the above doesn’t get close enough to allow specific error detection, you could try this: https://learn.microsoft.com/en-us/windows/deployment/upgrade/log-files

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Michael1950

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Argh! I’ve been through the setuperr.log and all of the other files without much success. I did find one reference to Logitech. I have the Brio camera. I think all of the arcane codes are too much for my pea brain.
I don’t have 24H2 queued anyway, so I can’t even test it.
Thanks for the help.
Michael

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Instead of letting Windows install it, download the ISO from MS, mount it (double click) and then run setup.exe from the mounted ISO (new disk).

cheers, Paul

2 users thanked author for this post.

Michael1950, PL1

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Hi Paul,
I seem to remember that using the ISO was not a good way to install 24H2. Not sure where I saw it. Maybe it was in the early days when 24H2 had loads of bugs.

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It’s the way we install all Windows upgrades / re-install Windows. It will offer to upgrade and you select “keep everything”.
Nothing “not good” about it.

As always, make an image backup first. 

cheers, Paul

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Hi Paul,
OK, I will go ahead and do it.
My computer has been running just about flawlessly (knock on wood) since W11 was installed.

By the way, I’d like to mention I have been using CCleaner for quite some time to clean the registry.

Thanks again to everyone that responded.
Michael

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I never clean the registry. It is a database and does not affect the performance of your computer. Cleaning it, on the other hand, can cause issues if the wrong thing is cleaned.

cheers, Paul

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PL1

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