Windows update failed to install

Question

Tried this 3 or 4 times. It fails every time and gets automatically rolled back. System says "something didn't go as expected"

2026-08 Security Update (KB5121003) (26200.9168)

Failed to install on ‎8/‎27/‎2026 - 0x80070002

2026-08 .NET Framework Security Update (KB5120708)

Failed to install on ‎8/‎27/‎2026 - 0x80070002

Update

This update is a PSA. Even after reinstalling Windows, that update which I thought installed actually didn't. Windows tried again today and broke the laptop again and backed it out. I did more research and apparently that update is doing this to many HP Omnibooks. Thanks Microsoft, Thanks HP, you guys teamed up so I could spend many hours spinning on the issue. Even Microsoft support didn't seem to know about it and just had me reinstall Windows. Seems like the only thing to do is pause updates until they fix it it. Although there was zero communication on this so how do I know when it's safe to go back into the water? https://www.reddit.com/r/techsupport/comments/1vuztj2/brand_new_hp_laptop_becomes_stuck_on_bootlogo/ https://learn.microsoft.com/en-us/answers/questions/5982539/windows-11-kb5121003-installation-and-boot-failure

I

Answer 1

I tried a few things from the thread, some of the command line stuff, but it didn't help. I ran the Windows Update Troubleshooter, which also failed, but then asked if I wanted to talk to a Microsoft support rep. The rep was super helpful, and we did a screen share. The fix was to reinstall Windows 11 (yikes). It took about 45 minutes, but after that the updates installed without bricking the laptop.

Answer 2

Thank you for updating me with that information. Please try the additional methods below.

• Run the Windows Update Troubleshooter Open Settings > System > Troubleshoot > Other troubleshooters > Windows Update > Run troubleshooter
• Please try to run SFC and DISM to check for any system errors and corrupted files.  https://support.microsoft.com/windows/using-system-file-checker-in-windows-365e0031-36b1-6031-f804-8fd86e0ef4ca  Restart your computer
• Reset Windows Update components manually  Press Windows key+X then select either Windows PowerShell (Admin) or Terminal (Admin) Copy each command line into PowerShell or Terminal, and then press Enter (one line at a time).

              net stop bits
              net stop wuauserv
              net stop appidsvc
              net stop cryptsvc
              Del "%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\*.*"
              rmdir %systemroot%\SoftwareDistribution /S /Q
              rmdir %systemroot%\system32\catroot2 /S /Q
              regsvr32.exe /s atl.dll
              regsvr32.exe /s urlmon.dll
              regsvr32.exe /s mshtml.dll
              netsh winsock reset
              netsh winsock reset proxy
              net start bits
              net start wuauserv
              net start appidsvc
              net start cryptsvc
  

  Restart your computer

Answer 3

Hi Daniel,

I will not link the article because it's full

of ads, but keep an eye out for an MS fix.

It seems it's related to RGB control apps.

Answer 4

Hi, good day!

Make sure Windows Update and Background Intelligent Transfer services are available and running.

Press Windows key+R to open Run then type: services.msc

Press Enter to open Services app

Double-click Background Intelligent Transfer Service.

If the Startup status lists Stopped, click Start and then click OK. Make sure to set its start type to Manual. If the status is Running, right click then select Restart

Do the same with Windows Update service

Close Services console then restart your computer

I look forward to receiving your update and I'm willing to collaborate with you till we resolve the issue. Do keep me informed by clicking "Add comment" below.