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Solved: How to Fix Error 8000FFFF Installing KB4457144 Windows Security Updates

By: Author Alex Lim

Posted on

Categories Troubleshooting

Problem

Error 8000FFFF “Windows Update encountered an unknown error” show when perform KB4457144 security updates on Windows Server 2008 R2 or Windows 7. This is a known issue, Windows 7 / Windows Server 2008 R2 may fail to install the cumulative update if you do not have KB3177467 Servicing stack critical updates for Windows 7 SP1 and Windows Server 2008 R2 SP1 September 2016 installed.

How to Fix Error 8000FFFF Installing KB4457144 Windows Security Updates

Solution: Apply KB3177467 Critical Updates

  1. Download and install KB3177467 Critical Updates from Microsoft Update Catalog.
  2. Restart computer.
  3. Run Windows Update again or manually download and install KB4457144 Security Updates from Microsoft Update Catalog.