problem in updating windows

Question

Sorry when I try to update windows from version "Windows 11, version 24H2" to version "Windows 11, version 25H2" I receive the following error "Installazione non riuscita su ‎11/‎11/‎2025 - 0x800f081f". Please I need help.

Answer 1

The most successful method to install version 25H2 is to use the Windows 11 ISO.

You need at least 40GB of free space on your C drive for the update (this space will be freed up automatically later).

Please ensure you download the ISO in the same language as you use for the Windows UI, follow the steps, this is then not like re-installing Windows, it is just like an update and your personal files, settings and installed software will not be affected.

Click this link:

https://www.microsoft.com/software-download/windows11

to download the Windows 11 ISO

When the ISO file completes downloading

Disconnect from the Internet

Disconnect all external devices with the exception of a mouse or keyboard.

Temporarily disable any 3rd party Anti-virus you may have installed

Then, in Windows File Explorer, double click the ISO and then run Setup.exe and select the Install option.

Very Important - ensure you select the option to keep your files and apps.

Answer 2

The error code 0x800f081f typically indicates that Windows is unable to find the files necessary to complete the update. Here are some steps you can take to troubleshoot and resolve this issue:

1. Check for Updates Again: Sometimes, simply checking for updates again can resolve the issue. Go to Settings > Update & Security > Windows Update, and click on Check for updates.
2. Run the Windows Update Troubleshooter: This built-in tool can help identify and fix problems with Windows Update.
   • Go to Settings > Update & Security > Troubleshoot > Additional troubleshooters.
   • Select Windows Update and run the troubleshooter.
3. Use the DISM Tool: The Deployment Image Servicing and Management (DISM) tool can repair the Windows image.
   • Open Command Prompt as an administrator and run the following commands:

          DISM /Online /Cleanup-Image /CheckHealth
          DISM /Online /Cleanup-Image /ScanHealth
          DISM /Online /Cleanup-Image /RestoreHealth
     

   • After running these commands, try updating again.
4. Check System Files: Corrupted system files can also cause update issues. You can use the System File Checker (SFC) to repair them.
   • Open Command Prompt as an administrator and run:

          sfc /scannow
     

   • Once the scan is complete, try the update again.
5. Free Up Disk Space: Ensure you have enough disk space for the update. Windows updates require sufficient space to download and install.
6. Manual Update: If the issue persists, you can manually download the update from the Microsoft Update Catalog.

If these steps do not resolve the issue, consider checking the Microsoft support website for more specific guidance related to your error code.

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References:

• Windows 11, version 25H2 known issues and notifications
• Resolved issues in Windows 11, version 24H2