Installing Acrobat Pro XI and getting error message 1303 Installer has insufficient privileges to access this directory C:\program files (x86) \Adobe\Acrobat 11\Acrobat

This was installed on this computer 3 years ago and was working fine. I got a virus this week and when we cleaned the virus, adobe had errors and said it needed to be uninstalled and re-installed. I did the uninstall fine and now it will not re-install. Error 1303 every time. I tried to install from the original file I saved on this computer, then downloaded it again from the adobe site with the same result.