Adobe CS4 Installation Issue: Error 2 2009-05-08 21:29:18 I experienced the exact same error when attempting to install Photoshop CS4 on a 64-bit Vista Home Premium system. While Adobe has had their problems with Vista, it certainly is supported by the entire CS4 suite! After a lot of hunting around the 'Net, I found a solution that worked for me here: http://www.vistax64.com/tutorials/172301-public-folder-icons-restore-default-icon.html When I first started using Vista I noticed a "C:\Users\Public\Documents" folder that I didn't think I needed, and decided to "clean up" the system by deleting it. I guess the CS4 installer needs it for something. This link shows you how to restore that special directory. Basically as an administrator user enter on the run menu these two commands: shell:Common Documents attrib +r "C:\Users\Public\Documents"