update is not

I'm trying to update my windows 7 but everytime it fails. What can I do? I tried chkdsk, but he found no problem. Tried to update again and did not work. I get "code 646: windows update encountered an unknown error."

I tried to watch it upward online but nothing. Someone at - it suggestions?

Have you tried the fix mentioned in this link?

http://Windows.Microsoft.com/en-us/Windows/Windows-Update-error-80070646-or-646

If that does not work, try to run Microsoft Fixit from the following links and then check:

http://Windows.Microsoft.com/en-us/Windows/troubleshoot-problems-installing-updates#1TC=Windows-7

https://support.Microsoft.com/en-us/mats/malware_prevention

If the problem persists, try running SFC scan. Check the link for more information:

https://support.Microsoft.com/en-us/KB/929833

Tags: Windows

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