Issue: During installation you get error 1327, which references an invalid drive number.

Causes: The System Registry may be erroneously pointing to an invalid or temp drive.


  • Back up your Windows Registry.
  • Open Windows Start menu, choose ‘Run’ (on Windows 10 press [WINDOWS + R]), type “regedit” and press [ENTER].
  • Navigate to the folder: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
  • On the right search for entries that list the incorrect drive.
  • Modify the incorrect drive to the correct drive letter, i.e. C:\.