Did you try the link I provided?
In all honesty, particularly with Windows 7 64-bit machines, the first thing to do is to try System Restore. More often than not, that fixes the problem since Windows 7 has a much more robust System Restore than XP and Vista.
Another option is to perform a SFC (System File Checker) scan which will check and fix any corrupted files on your system. The System File Checker tool scans system files and replaces incorrect versions of the system files by using the correct versions.
To run the System File Checker tool, follow these steps:
- Click Start, and then type cmd in the Start Search box.
- Right-click cmd in the Programs list, and then click Run as administrator.
- If you are prompted for an administrator password or confirmation, type your password or click Continue
- At the command prompt, type the following line, and then press ENTER:
sfc /scannow (note the space before the backslash)
- When the scan is complete, close the command prompt window, restart the computer and test to see whether the issue that you are experiencing is resolved.
Edit note: I forgot to ask before. Is there an error code that you get when the updates fail?