Do you receive an error message?
We need to take a look at the Windows Update.log file to determine the
problem and provide suggestions.
Please post the last 20 lines of the Windows Update.log file.
To view the file:
Copy and paste "%windir%\windows update.log" (w/o the quotes)
into the Internet Explorer address bar and hit Enter.
Scroll down to the current date and look for the error being reported.
Please post the last 20 lines from the Windows Update.log file