Can’t delete printer driver – Access denied or driver not found.

There are numerous reasons on why you want to delete an Printer driver, and even more reasons why the driver won’t get removed (completely).

You could get errors like:
Failed to remove driver The specified printer driver is currently in use.
Failed to remove package .inf. Driver package is in use.
Failed to remove package .inf. Access is denied.

Etcetera.

Citrix made a great tool for uninstalling printer drivers easy:
“Print detective”
http://support.citrix.com/article/CTX116474

Just run the program, select the printer and choose ‘Delete driver(s)’