L3Harris narda PMM EP-600 User Manual page 88

Uninstalling the driver of RS232-USB adapter
5.9
Apply this method if the driver uninstaller (normally supplied with the
hardware) is not available.
Go to Control Panel  Uninstall a Program. Select "PL-2303 USB-to-
Serial" with right mouse button and select Uninstall.
Click Remove, then Next to begin the driver uninstall.
Click Yes to continue.
5-34 WinEP600 and SetAddEP600 operating instructions