This is due to the driver file still exist in System folder. You can remove it manually by following steps.

- Open Control Panel > Device Manager
- Right click on suspected driver > Properties
- Click on Driver Details button
- Note down driver's path
- Open that path in Windows Explorer. Seems to be c:\windows\system32
- Now Go Device Manager > Right Click on Driver > Uninstall
- Go to File Explorer and delete those files with path got in step 4 (be sure to take backup before deletion)
- Done..
You can confirm driver uninstallation via clicking on Scan for Hardware Changes button from Device Manager. It might show yellow colour notification or Unknown device label on that driver.