Run a system file check by going to the start search box and typing cmd
Hold shift and ctrl and press enter
That should open an administrator command prompt.
Type sfc /scannow into that box.
If errors are found run the command again (up to 3 times)
Restart your computer after each time to allow it to repair files that may be in use.
Post back with results.
Ran and restarted 3 times I get the message that corrupt files are found but could not repair all the message in my device manager is
Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)