Download the utility http://support.microsoft.com/kb/290301
Use that to clean up the Reader Installation
it was on a non existing drive F so what can i do i want to keep my acrobat 5 and upgrade to adobe 9 that works i need adobe to change files to PDF forms for my company can you help?
You cannot have Reader 9 (or any other version) and Acrobat 5 on the same windows system. It will cause problems.