Tuesday, 23 February 2016

Tech Support: windows updates error codes 643 and 646

windows updates error codes 643 and 646

cannot install microsoft.net framework 1.1 service pack 1 security update as well as security updates for 20047 microsoft office. I'm not comfortable with uninstalling net frameworks and reinstalling.
what could go wrong? is there an easier fix?
error codes 643 and 646
**Original Title**
windows updates

Anwsers to the Problem windows updates error codes 643 and 646

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Please post with the info requested here: What to post in the Windows Update forum
Begin with these troubleshooting steps and post back with the requested info and results from the troubleshooting.
Clean Boot your PC and then run Windows Update.
Reset Windows Update Components
Perform steps from KB883825

Mike - Microsoft Answers Support Engineer
Visit our
Microsoft Answers Feedback Forum and let us know what you think.

  • Go to the Start button.
  • In the Search box, type "cmd" (without quotes) and press Enter.
  • At the command prompt, type "chkdsk /r /f" (without quotes) and press Enter.
  • Restart your computer.

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