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- Did you make any changes on the computer prior to the issue?
- Do you receive any error message?
- Is the issue confined to Microsoft Visual Studio 2010 Tools for Office Runtime?
**Method 1:**Run the fix it and check.****Fix the problem with Microsoft Windows Update that is not working
http://support.microsoft.com/mats/windows_update/ **Method 2:**Try to download the standalone version of the update and save it to the desktop and try to install the install the same after putting the computer in a clean boot state.
How to configure Windows XP to start in a "clean boot" state
http://support.microsoft.com/kb/310353
Note: After using Clean Boot to resolve the issue follow “Steps to configure Windows to use a Normal startup state” under
Refer: An update rollup is available for Visual Studio 2010 Tools for Office Runtime 4.0
http://support.microsoft.com/kb/2764593
Refer the steps from the link and check.
You receive “0x80070643” or “0x643” error codes when you try to install .NET Framework updates through Windows Update or Microsoft Updates
If you need further assistance, please reply and we will be happy to help you.