Sharp PN-L803C Service Manual page 115

4) Click [Add] button.
Click "Add".
5) Select the listed "VID_04DD PID_97A7" as shown in the following image and clich [Remove Devices].
Select
"VID_04DDPID_97A7" and
click "Remove Devices".
6) Check that the "Device removed from system" or "This device could not be found on the system" message is displayed.
"Device removed from system" : Resetting operation is finished successfully.
"This device could not be found on the system" : The resetting operation has already been done, then, resetting operation is finished on the
way to the resetting.
7) Click the [OK] or the [Cancel] of CDMuninstallerGUI.exe.
8) Restart the PC.
9) Install the touch pen driver.
PN-L803C/80TC3 SERVICE MENU/VARIOUS SETTING TOOL OPERATING PROCEDURES 4- 49