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Windows Update Error 66a or 0x8007066A

· One min read
Luke Murray
Luke Murray
Author
  1. Click Start
  2. Click Control Panel
  3. Click Uninstall a Program/Add and Remove Programs
  4. Go down the list and find Net Framework 4 Client Profile
  5. Right click Net Framework 4 Client Profile and select Change/Repair.
  6. Select Repair

The Net Framework will then go through and repair its files and registry entries, once completed restart your windows machine and attempt Windows Update again.