How to Fix KB5027397 Fails to Install on Windows 11/10?

This guide helps you install the Windows 11 23H2 feature update, specifically addressing issues with KB5027397. While KB5031455 officially updates to 23H2, KB5027397 is a crucial enabling package.

Installing KB5027397:

1. Open Settings (Windows key I).
2. Navigate to Windows Update. Check if KB5027397 is listed.
3. If not, click "Check for updates." Ensure "Get the latest updates as soon as they're available" is enabled.
4. Download and install the update once it appears.

Troubleshooting KB5027397 Installation Failures:

If installation fails, try these solutions:

1. Run the Windows Update Troubleshooter:

1. Open Settings (Windows key I).
2. Go to System > Troubleshoot > Other troubleshooters.
3. Run the Windows Update troubleshooter.

2. Perform an SFC or DISM Scan:

1. Open Command Prompt as administrator (search for "cmd," right-click, and select "Run as administrator").
2. Run sfc /scannow and wait for the scan to complete.
3. If SFC fails, try these DISM commands sequentially:
   • DISM /Online /Cleanup-Image /CheckHealth
   • DISM /Online /Cleanup-Image /ScanHealth
   • DISM /Online /Cleanup-Image /RestoreHealth

3. Restart the Windows Update Service:

1. Open the Run dialog (Windows key R).
2. Type services.msc and press Enter.
3. Right-click Windows Update and select Restart.

4. Manual KB5027397 Download and Installation:

1. Download KB5027397 from the official Microsoft update catalog (link not provided as it's subject to change).
2. Save the downloaded package and run the .exe file to install.

Successfully installing KB5027397 is key to enabling the Windows 11 23H2 features. If problems persist after trying these steps, further troubleshooting may be necessary.

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