Please answer a few questions below:
1) What operating system are you currently running? Windows XP, Vista, or Windows 7?
2) Is this the only update you are having problems installing? If there are other updates that are having problems please let us know.
*If you are only having problems with this particular update, try visiting Microsoft Download Center
, enter KB953297 into the search box, download the appropriate update, and then try manually installing the update and restarting your computer afterwards. This is a manual procedure to install an update that is not working through Microsoft's automated update process.
Let me know if you need help with anything else.