# Disabling the USB Driver Installation Check

TYPE | DIRECTIVE | OPTIONAL | ARGUMENTS
Operation | -no_usbdrvchk | Yes | None

The windrvr.sys driver must be installed prior to performing ISP operations through the USB. By default, batchisp checks the proper installation of the driver by scanning the registry and stops if the searched registry key is not found.

It may happen that the registry key cannot be found although the driver is properly installed; you can exit this deadlock by using the no_usbdrvchk directive.