I am getting "Install error - 0x800f081f" while installing 2025-04 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5055523)

Hi, Thanh,

Thank you for using Microsoft products and making community posts.

I understands the importance of resolving this issue, Don’t worry I will be helping you with this following steps.

The error code 0x800f081f typically indicates missing or corrupted files in the Windows component store. Here are some steps you can try to resolve the issue:

1. Run the Windows Update Troubleshooter:

   • Go to Settings > System > Troubleshoot > Other troubleshooters.

   • Select Windows Update and run the troubleshooter.

2. Use DISM Commands:

   • Open Command Prompt as an administrator.

   • Run the following commands one by one:

     bash

     dism /online /cleanup-image /startcomponentcleanup
     dism /online /cleanup-image /restorehealth
     

   • These commands will attempt to repair the component store.

3. Install the Update Manually:

   • Visit the Microsoft Update Catalog and search for the update (KB5055523).

   • Download the standalone installer and run it.

4. Check for Pending Updates:

   • Ensure all previous updates are installed, as some updates depend on earlier ones.

5. Reset Windows Update Components:

   • Open Command Prompt as an administrator.

   • Run each of this following commands:

     net stop wuauserv
     net stop cryptSvc
     net stop bits
     net stop msiserver
     ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
     ren C:\Windows\System32\catroot2 catroot2.old
     net start wuauserv
     net start cryptSvc
     net start bits
     net start msiserver
     

6. Perform a Repair Install:

   • Download Windows 11 > click on download now > choose language and click on 64-bit download

   • run the file and just follow the prompts

     this process will take sometime and the computer will restart for a couple of times and after that you will be back on your screen and check for windows update.

Let me know if you need detailed guidance for any of these steps!

Please feel free to let me know how it goes.

Chan G

Microsoft Community Moderator

Hi, I'm Estrella. I'll do my best to help you.

1. Execute the Windows Update troubleshooter:

Navigate to Start > Settings > System > Troubleshoot > Other troubleshooters > Windows Update, then click Run.

2: Reset Windows Components

In your search bar type CMD and right-click it, select run as administrator
Copy and paste each of the commands below then Enter:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
Ren C:\Windows\System32\catroot2 Catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver

Restart your PC once done and then try again.

3. If that fails, please follow the steps below without deleting your files and apps.

Click the Start menu > Settings > System > Recovery.
Choose Reinstall Now under the section labeled 'Fix problems using Windows Update.'
Once completed, your system will restart. Please check afterward.

Hi

 

We haven't heard from you in 72 hours, so we will be considering your issue resolved. If you do need further help, please create a new thread to discuss those concerns as we will not be monitoring this thread going forward.

 

Thank you for understanding.

 

Regards,

Chan G

Microsoft Community Moderator