In the rare event that the Cintiq Companion crashes, you can reinstall Windows 8:
- Select "Settings"
- Select "Change PC settings".
- Select whether you want to refresh or reset your Cintiq Companion.
And, if you want to boot into the recovery partition while booting up, please press "F9" (note: update to the latest BIOS to Cintiq Companion first) once you power on the system, Then you can see "Trouble shooting" option under system restoration.