Is there anyway to back up the windows updates. Because the Windows update site deals with these files automatically I'm unsure where they are placed and if they can be backed up and run manually to save the effort of downloading them again after a Windows reinstall.

Currently there is a folder in my C drive called WUtemp with 7 self extracting patches in them. Though I thought there would be more as I'm completely up to date.
Thanks for your help,