Please clarify/try to do the following steps,
Do you have any third party (data backup) software/Application in the computer?
Can we have the Version of McAfee software installed in the computer (Open Security center->Click on the about button on the bottom Right hand panel of Security center ->Check the Build number for the)?Steps:
Try to perform the windows update including Optional update (open the Internet Explore Click Tools->windows update)
Follow up the Document ID: TS100243 if you are getting an error regarding the Microsoft .NET Frameworkhttp://service.mcafee.com/FAQDocument.aspx?id=TS100243&lc=1033
Perform the MVT in the computer and post the session ID http://mvt.mcafee.com/mvt/default.asp