Question
Cannot update acrobat 9.0 pro
I have acrobat 9.0 pro which could be updated to version 9.4.5. I reinstalled the windows 7 system recently and reinstalled the acrobat 9.0.0. When apply the first update package 9.1.1, I got an error 'the upgrade patch cannot be installed because the program to be upgraded may be missing .....'. I re-downloaded all the packages from adobe.com, still the same error. What's wrong?