up to date kb/2680317 failed with the error code 646-how can I fix

How to fix update does not install and error code 646 kb/2680317

Hello

1. have you made changes on the computer recently?

2 is the issue specific to this update?

3. are you able to install other updates successfully?

Try the following steps.

You receive the error code: 0 x 80070646, error code: 646 or error code: 1606 when using Windows Update or Microsoft Update: http://support.Microsoft.com/kb/2258121

Registry warning

To do: Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems can occur if you modify the registry incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it. Then you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click on the number below to view the article in the Microsoft Knowledge Base:

322756 (http://support.microsoft.com/kb/322756/)

How to back up and restore the registry in Windows

Refer.

Problems with the installation of the updates: http://windows.microsoft.com/en-us/windows-vista/Troubleshoot-problems-with-installing-updates

I hope this helps.

Tags: Windows

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