Windows 10 Pro 1903 .NET Framework 3.5 Update Installation Error 0x8000ffff

  • Thread starter Thread starter N.Bruno
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N.Bruno

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2020-02 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 1903 for x64 (KB4534132) - Error 0x8000ffff

When turning the .NET Windows Feature on, I receive "Catastrophic Failure... Error 0x8000ffff"

Windows Assistant returns an error. Media Creation Tool returns an installation error. I cannot even successfully perform a factory reset.

Microsoft Surface Book 2

Windows 10 Pro version 1903

Build: 18362.592

Installed: 09/24/2020

I did notice the updates failing around the fall of 2020. However, this computer was used primarily by a school-aged child attending remote learning - it was working fine for this purpose.

I've read and followed countless steps/methods found within Microsoft Community and Answers. Nothing has allowed this update to install.

Links to some steps I have tried:


Windows update error Error 0x8000ffff - Microsoft Community

Windows Update Error 0x8000ffff - Microsoft Community


Download Windows 10 (microsoft.com)


Please help!

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