page 11
10/2018
TEDIA
®
USB converters UC-232 and UC-485
page 12
10/2018
TEDIA
®
USB converters UC-232 and UC-485
6. Driver Uninstallation
With the release of Microsoft Windows 7, the FTDI uninstaller has been rendered unusable due to
Windows Resource Protection preventing the executable from deleting driver files and associated
registry values. Windows 7 will only allow the system itself to modify files and registry values in these
locations.
Devices can be removed using the Device Manager by simply right-clicking on the mouse and selecting
„Uninstall“. This will delete the associated registry entries for that device only. Windows 7 provides an
automatic method to delete driver files via a check box to „Delete the driver software for this device“ on
the uninstall dialog box.
This stage is done twice. Once for the device under Ports (COM & LPT) and once for the device under
Universal Serial Bus Controllers. (see Figures 17 and 18).
Some points to note about the un-installation method:
• Windows XP and Server 2003 do not have this check box, so driver files and OEM INF and PNF
files must be removed manually or by using a custom application. Please contact the TEDIA technical
support if you need to unistall the driver manually.
• The COM port driver should be uninstalled before the bus (system) driver. If the bus is removed
first, the COM port will no longer appear in the Device Manager.
• If the files are deleted while other installed devices still require them those devices will not work
correctly. This can be fixed by right clicking the device and selecting „Reinstall Driver“ which will
replace the missing files.
Fig. 17. Device Driver Uninstallation.
Fig. 18. Device Driver Uninstallation.
