If you are using a VID and PID which is different from the default FTDI ones (VID = 0x0403 and PID = 0x6001), you must edit the uninstaller FTDIUN2K.INI files using a text editor such as NotePad. In the [Uninstall] section of each file, edit the line
Device=VID_0403&PID_6001
to reflect the actual VID and PID used.
The following example shows a new device with a VID of 0x1234 and a PID of 0x5678. In this example, the altered line is shown in red to highlight it.
[Uninstall]
Device=VID_1234&PID_5678
Converter=FTDIBUS
Serial=FTSER2K
InfFiles=FTDIBUS,FTDIPORT
Key=FTDICOMM
Device=VID_0403&PID_6001
to reflect the actual VID and PID used.
The following example shows a new device with a VID of 0x1234 and a PID of 0x5678. In this example, the altered line is shown in red to highlight it.
[Uninstall]
Device=VID_1234&PID_5678
Converter=FTDIBUS
Serial=FTSER2K
InfFiles=FTDIBUS,FTDIPORT
Key=FTDICOMM