2025-06 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5063060) Install error – 0x800f0900

Troubleshooting Windows 11 KB5063060 Installation Error 0x800f0900 on Version 24H2 (June 2025 Cumulative Update)

Many Windows 11 users encounter challenges when trying to install the June 2025 cumulative update (KB5063060) for version 24H2, particularly on x64-based systems. A common error code associated with this process is 0x800f0900. If you’re experiencing similar issues, you’re not alone, and understanding the root causes and potential solutions can help facilitate a smooth update experience.

Background

Recently, a user reported difficulty installing the aforementioned update after refurbishing their PC. The initial problems included NVLDDMKM driver issues (which are typical for NVIDIA graphics drivers) and frequent blue screen errors. Post-repair, these issues appear resolved; however, the update still refuses to install, prompting concerns about underlying system stability and compatibility.

Common Issues and Related Concerns

Beyond installation troubles, several users have expressed related worries, including:

• Compatibility conflicts with Easy Anti-Cheat (EAC) systems used by popular gaming titles such as Fortnite and Apex Legends, which have been linked to blue screen errors during gameplay.
• Whether installing the missing update will rectify driver issues and gaming stability problems.

Potential Causes of the Installation Error

The error code 0x800f0900 generally indicates that Windows Update cannot locate the necessary files or that there is a conflicting component, possibly stemming from:

• Corrupt or incomplete update files
• Driver conflicts or outdated drivers
• System file corruption
• Residual issues from prior hardware or software modifications

Recommended Troubleshooting Steps

1. Run Windows Update Troubleshooter:

2. Access via Settings > Update & Security > Troubleshoot > Additional troubleshooters > Windows Update.

3. Clear Windows Update Cache:

4. Stop the Windows Update service.
5. Delete the contents of C:\Windows\SoftwareDistribution\Download.

6. Restart the update service and retry.

7. Manually Download and Install the Update:

8. Visit the Microsoft Update Catalog.
9. Search for KB5063060 and download the correct version for your system.

10. Install manually to bypass Windows Update.

11. Check and Update Drivers:

12. Particularly focus on graphics drivers, given prior NVLD driver issues.
13. Use manufacturer tools (NVIDIA GeForce