I cannot install the following update: Microsoft .NET Framework 4 Client Profile for Windows 7 x64-based Systems (KB982670)

Do you encounter any error message when the update fails? You might wanna follow the step as following: Access the below link for more information on Windows Update Troubleshooter: http://windows.microsoft.com/en-AU/windows7/Open-the-Windows-Update-troubleshooterAlso refer to the below link: You cannot install some updates or programs: http://support.microsoft.com/kb/822798

Try going to the following link and download the stand alone installer. http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e5ad0459-cbcc-4b4f-97b6-fb17111cf544