process of thorough uninstallation
1. Delete all OEM files under the C:\windows\inf\oem.inf path
2. Delete the corresponding SYS file under the C:\Windows\System32\Drivers path
3.(important)
The first step: use PsExec.exe to get administrator access to the registry, PsExec.exe http://technet.microsoft.com/en-us/sysinternals/bb897553
Put PsExec.exe into the c:\windows\system32 path, then use the cmd command, Psexec.exe-i-d-s Regedit.exe to open the registry for the deletion of the corresponding item.
The second step: Delete the registry path under: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum the corresponding device in all of the drive PID, vid related items, such as:HKEY_LOCAL_MACHINE \SYSTEM\CURRENTCONTROLSET\ENUM\HID\VID_04B4&PID_1004&COL02 HID devices,
Step three: In thewindows8 system , if the driver is not successfully loaded after reboot, but you must specify the name of the previously installed INF file to install, you need to continue to delete the contents of the following path:hkey_local_machine\system\ Driverdatabase\driverpackages and hkey_local_machine\system\driverdatabase\driverinffiles, the corresponding INF file entry under the path.
Windows driver Full uninstall process (resolves problems after uninstall, rescan or restart, drive still occurring)