Windows Update error 0x8007066A or 66A

If you receive Windows Update error 8007066A or 66A when you use Windows Update, it means that your PC couldn't connect to the Windows Update servers. To resolve this problem, run the Windows Update Troubleshooter.

If you've run the troubleshooter and continue to see this error, you can try searching the forums or asking a question on the Microsoft Community website.

Error codes this applies to:

  • 8007066A

  • 0x8007066A

  • 66A

  • WindowsUpdate_8007066A