Error: Can’t assign a drive letter or mount point. What do I do?

There can be several reasons for getting this error. The most common two:

  1. Dokan is installed incorrectly. This is usually resolved by a full reinstall of Dokan while rebooting after each action (reboot after uninstall, before reinstall and once again after reinstall).
  2. By default the DokanMounter service registers at launch with a “Local System” account. Most likely, the local system account authorization does not have the permission to create files or directories in the game catalog. In this case go to the properties for the game directory and click on the “security” tab and add permissions for “Local System”. You can also open the properties from the services dialogue in the Task Manager and under “Logon” specify a user account with full permissions for the game folder.

Posted in: Dokan