1. Verify that you are logged in as a user with Local Administrative rights
  2. Edit the Registry
  3. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Current Version
  4. Verify that the CommonFilesDir Data Value is set to a valid path on the local hard drive. Exit the Registry.
  5. Verify that the your login has Full Control NTFS Permissions of the CommonFilesDir directory that is noted in the Registry