So, after 5 years I finally got around to buying a new printer/scanner/copier, going from an all-in-one 1350 to an all-in-one C-4385. I tried to install the new CD. But guess what. Once it was like half way there, it stopped and a message popped up saying the installation was cancelled because of a failure, because Windows Installer is not correctly installed. How do I fix windows installer on my Windows XP?