Error 0x800f0922 for 2020-01 Cumulative Update for Windows 10 Version 1909 for x64-based Systems (KB4532695)

I thought others might benefit from my experience. The problem was solved but it was rather strange.

I tried to install Windows from an ISO image created by the Windows media creation tool. It didn't work. Eventually I figured out it was not seeing enough free space for temporary files, but my C: drive has more than 500GB free.

I went into DISKPART and after much rooting around discovered that the GUI ID for my EFI System partition was wrong. I'm guessing this happened when I expanded it to 500MB from 100MB as per  HiltonOishi's suggestion in https://answers.microsoft.com/en-us/windows/forum/all/failed-install-attempt-error-code-0x800f0922/c5eb31d7-f04f-4ff8-9d6f-f39e4f03944b.

I set the EFI partition's GUID to c12a7328-f81f-11d2-ba4b-00a0c93ec93b as it should be and retried the Windows installation from ISO. This time it seemed it would continue, so I interrupted it and ran the update I had been trying to install, and it installed without a problem.

Thanks for posting that, very helpful.  Same thing happened to me after cloning my system to a larger drive.  FYI, for others to steps to fix this involve using diskpart, selecting the correct partition and then running this command.  "set id=c12a7328-f81f-11d2-ba4b-00a0c93ec93b override"

I thought others might benefit from my experience. The problem was solved but it was rather strange.

I tried to install Windows from an ISO image created by the Windows media creation tool. It didn't work. Eventually I figured out it was not seeing enough free space for temporary files, but my C: drive has more than 500GB free.

I went into DISKPART and after much rooting around discovered that the GUI ID for my EFI System partition was wrong. I'm guessing this happened when I expanded it to 500MB from 100MB as per  HiltonOishi's suggestion in https://answers.microsoft.com/en-us/windows/forum/all/failed-install-attempt-error-code-0x800f0922/c5eb31d7-f04f-4ff8-9d6f-f39e4f03944b.

I set the EFI partition's GUID to c12a7328-f81f-11d2-ba4b-00a0c93ec93b as it should be and retried the Windows installation from ISO. This time it seemed it would continue, so I interrupted it and ran the update I had been trying to install, and it installed without a problem.

Thanks for posting that, very helpful.  Same thing happened to me after cloning my system to a larger drive.  FYI, for others to steps to fix this involve using diskpart, selecting the correct partition and then running this command.  "set id=c12a7328-f81f-11d2-ba4b-00a0c93ec93b override"

But what if the ssd disk is MBR?

Hi all

I am running Windows 10 Pro Ver. 1909 build 18363.836.

PS: I must say that I recently uninstalled the anti-virus program (Avira) because I only want to use Windows defender. Obviously there were still a lot of Avira entries left in the registry at that time. I had to delete all of them first. 

After hours of Internet research I found the hint to check various "Services" status which need to be activated. E.g. "IP-Hilfsdienste", "Windows-Verwaltungsinstrumentation", etc. 

I came to this because by another blog saying that it was necessary to activate Windows features ".Net-Framework". However trying to activte ".Net-Framework" I allways got error "Fehler 1068 Abhängigkeitsdienst oder Abhängigkeitsgruppe konnte nicht gestartet werden"

After activating the following "Services" I was able to change the status in Windows Features ".NET-Framework"  and 

after the services were started (Restart necessary), I finally could install the update (KB4556799).

I've been reading all the posts. What I'm seeing is that the only real fix for this is a full reinstall of Windows. That's not acceptable!!!! If this is the new future norm for Microsoft then I see dark days ahead.

I am having this issue.  My system has not updated since March or early April.  My boot drive is Disk 1 and not Disk 0  The EFI ID looks correct.  Any ideas?  Could it be that my boot drive is not Disk 0?