https://www.jungo.com/st/support/windriver/how_to_uninstall/
NOTE
If you attempt to uninstall WinDriver while there are open handles to the WinDriver service
(windrvr1460.sys or your renamed driver), or there are connected and enabled Plug-and-Play
devices that are registered to work with this service, wdreg will fail to uninstall the driver.
This ensures that you do not uninstall the driver while it is being used.