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Hello!
The update August 11, 2026—KB5120249 ends with download failure 0x800f0805.
I tried the MSU file from the Microsoft Update Catalog: No success. Message: "This update is not appicable to your computer." Event viewer for WUSA shows error 2149842967.
Edition Windows 10 Home 64 Bit x64
Version 22H2
OS Build 19045.7548
Thank your for help.
Hi. I'm David, and I'm happy to help you.
To be able to assist you better, please clarify the following:
Looking forward to your reply.
No third-party antivirus software installed.
No VPN software installed.
Sorry for the delay in reply. I've been offline.
Thanks for the clarifications.
I suggest doing the following:
Run the Windows Update troubleshooter and try to install the update.
If it persists, rename the software distribution folders as instructed below:
cmd, right-click on "Command Prompt", and select "Run as administrator".net stop bits
net stop wuauserv
net stop cryptsvc
ren %systemroot%\softwaredistribution softwaredistribution.bak
ren %systemroot%\system32\catroot2 catroot2.bak
net start bits
net start wuauserv
net start cryptsvc
If it persists, use the system file checker to repair possible corrupted or missing system files.
cmd, right-click on "Command Prompt", and select "Run as administrator".dism.exe /online /cleanup-image /scanhealth
dism.exe /online /cleanup-image /restorehealth
dism.exe /online /cleanup-image /startcomponentcleanup
sfc /scannow
Note: Pay close attention to the results of the commands. This will help you determine whether the procedure was completed successfully or if there was a problem. If you get any errors, let me know the error message that was displayed.
If the problem persists, please let me know, and I will provide another method.
Feel free to ask any questions you may have.
Here is the result from the DISM log file:
2026-08-20 22:42:11, Info DISM DISM Package Manager: PID=14300 TID=9132 Error in operation: source for package or file not found, ResolveSource() unsuccessful. (CBS HRESULT=0x800f081f) - CCbsConUIHandler::Error 2026-08-20 22:42:11, Error DISM DISM Package Manager: PID=14300 TID=13460 Failed finalizing changes. - CDISMPackageManager::Internal_Finalize(hr:0x800f081f) 2026-08-20 22:42:11, Error DISM DISM Package Manager: PID=14300 TID=13460 The source files could not be found; their location must be specified using the /source option to restore the feature. - GetCbsErrorMsg 2026-08-20 22:42:11, Error DISM DISM Package Manager: PID=14300 TID=13460 Failed processing package changes with session option CbsSessionOptionRepairStoreCorruption - CDISMPackageManager::RestoreHealth(hr:0x800f081f) 2026-08-20 22:42:11, Error DISM DISM Package Manager: PID=14300 TID=13460 The source files could not be found; their location must be specified using the /source option to restore the feature. - GetCbsErrorMsg 2026-08-20 22:42:11, Error DISM DISM Package Manager: PID=14300 TID=13460 Failed to restore the image health. - CPackageManagerCLIHandler::ProcessCmdLine_CleanupImage(hr:0x800f081f) 2026-08-20 22:42:11, Error DISM DISM Package Manager: PID=14300 TID=13460 Failed while processing command cleanup-image. - CPackageManagerCLIHandler::ExecuteCmdLine(hr:0x800f081f)
Your apps, settings, and files will be kept by default during a repair install/in-place upgrade.
See also:
Reinstall Windows - Microsoft Support: https://support.microsoft.com/en-us/windows/reinstall-windows-d8369486-3e33-7d9c-dccc-859e2b022fc7
Thank you for your quick answer.
I tried to upgrade with MCT but I got the message:
"Windows 10 cannot run on this computer"
"The system-reserved partition could not be updatetd"
"The system-reserved partition could not be updatetd"
Please run the commands I mentioned in this post:
https://learn.microsoft.com/en-us/answers/a/12926078
Post the output here.
Microsoft Windows [Version 10.0.19045.7548]
(c) Microsoft Corporation. Alle Rechte vorbehalten.
C:\WINDOWS\system32>cmd.exe
Microsoft Windows [Version 10.0.19045.7548]
(c) Microsoft Corporation. Alle Rechte vorbehalten.
C:\WINDOWS\system32>
C:\WINDOWS\system32>mountvol Y: /s
C:\WINDOWS\system32>
C:\WINDOWS\system32>del /q Y:\EFI\Microsoft\Boot\Fonts*.ttf
C:\WINDOWS\system32>
C:\WINDOWS\system32>powershell -command "GCI Y:\ -File -Recurse | Sort Length -descending | Select FullName, Length, Mode -first 10"
FullName Length Mode
Y:\EFI\HP\SystemDiags\SystemDiags.efi 21981704 -a----
Y:\EFI\HP\SystemDiags\HpSysDiags.efi 21981696 -a----
Y:\EFI\HP\BIOS\Current\084C8.bin 8388608 -a----
Y:\EFI\HP\BIOS\Previous\084C8.bin 8388608 -a----
Y:\EFI\Boot\bootx64.efi 3055456 -a----
Y:\EFI\Microsoft\Boot\bootmgfw.efi 3055456 -a----
Y:\EFI\Microsoft\Boot\bootmgr.efi 3039216 -a----
Y:\EFI\HP\BIOSUpdate\HpBiosUpdate.efi 1475272 -a----
Y:\EFI\HP\BIOSUpdate\HpBiosMgmt.efi 1475256 -a----
Y:\EFI\Microsoft\Boot\memtest.efi 1431024 -a----
C:\WINDOWS\system32>
C:\WINDOWS\system32>dir Y:\
Volume in Laufwerk Y: hat keine Bezeichnung.
Volumeseriennummer: 4CF3-FC88
Verzeichnis von Y:\
24.06.2024 09:17 <DIR> EFI
0 Datei(en), 0 Bytes
1 Verzeichnis(se), 15.367.168 Bytes frei
C:\WINDOWS\system32>
There was a typo in an important command.
Retry the commands and post a screenshot. Don't type them. Copy each line and paste it in the Command Prompt window.
Please run:
mountvol Y: /s
cd /d Y:\EFI\HP\BIOS\Previous
move *.bin C:\
dir Y:\
Post the output.
Great. Please run the repair installation using MCT.
Thank your very much for your help. The repair with MCT worked well.
But now I get one error after the other in the file system. If I run chkdsk the laptop works one day well then again errors.
But now I get one error after the other in the file system. If I run chkdsk the laptop works one day well then again errors.
What's the exact error?
"The device, \Device\Harddisk0\DR0, has a bad block."
"The device, \Device\Harddisk0\DR0, has a bad block."
That means the disk is bad (physically). Please back up the data and consider replacing the disk asap.