cck_my

First try to scan disk: select system disk restart to scan:
http://windows.microsoft.com/en- ... -a-drive-for-errors

If problem still there, try remove the device in device manager then restart your pc:

http://windows.microsoft.com/en- ... Open-Device-Manager

This links in details:

http://windows.microsoft.com/en- ... -installed-properly

http://windows.microsoft.com/en- ... y?T1=hardwarecompat