KB5073455 Not Installing on Windows 11 23H2 – Fix

If the Windows 11 23H2 update KB5073455 fails to install, the problem is usually caused by corrupted system files, broken Windows Update components, or background services not working correctly. Follow the fixes below in order.

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Fix 1: Run System File Checker (SFC)

Corrupted system files can prevent feature updates from installing.

1. Open the Start menu
2. Type cmd
3. Right-click Command Prompt and select Run as administrator
4. Click Yes when prompted

Now type the following command and press Enter:

sfc /scannow

Wait for Windows to scan and repair system files.
Once finished, type exit and press Enter.

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Fix 2: Repair Windows Image Using DISM

If SFC does not fully resolve the issue, run DISM.

1. Open Command Prompt as administrator again
2. Type the command below and press Enter:

DISM /Online /Cleanup-Image /RestoreHealth

Wait for the process to complete.
When finished, type exit, press Enter, and restart your PC.

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Fix 3: Run the Background Intelligent Transfer Service (BITS) Troubleshooter

Windows Update relies on BITS to download updates.

1. Open Settings
2. Go to System
3. Select Troubleshoot
4. Click Other troubleshooters
5. Locate Background Intelligent Transfer Service
6. Click Run
7. Select Yes to diagnose the issue

If Windows fixes the problem, close the troubleshooter.

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Fix 4: Clear Corrupted Windows Update Files

Corrupted update files often block feature updates.

1. Open File Explorer
2. Go to C:\Windows
3. Open the SoftwareDistribution folder
4. Open the Download folder
5. Click Continue if prompted
6. Delete all files inside the Download folder

Close File Explorer and proceed to the next step.

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Fix 5: Run the Windows Update Troubleshooter

1. Open Settings
2. Go to System
3. Select Troubleshoot
4. Click Other troubleshooters
5. Locate Windows Update
6. Click Run
7. Select I can’t download, install, or uninstall an update
8. Click Yes to diagnose the issue

Wait for the scan to finish and apply any fixes found.

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Fix 6: Check for Updates Again

1. Open Settings
2. Go to Windows Update
3. Click Check for updates

The KB5073455 feature update should now install correctly.

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Conclusion

If KB5073455 fails to install on Windows 11 23H2, the issue is almost always related to corrupted system files or broken update services. Running SFC, DISM, clearing the SoftwareDistribution folder, and using built-in troubleshooters resolves the problem in most cases.