When a new 64 bit PC/Laptop comes into our office with Windows 7 Pro installed -- it has IE 10 already in place. We have an app in our office (intranet) that does not work with IE 10 so we need to downgrade it back to IE 9. When we uninstall IE 10 it rolls back to IE 8 and then we upgrade to IE 9. The problem is consistent -- if we do this -- users get errors when they try to download a file from any internet site. Gives a can't access or file does not exist. Anybody else have this downgrade issue or know what the fix may be.