58Chapter 4. Troubleshooting̈Diagnosing problems using PC-Doctor from the service partitionBy using PC-Doctor from the Rescue and Recovery workspace in the service partition of the hard disk dr ive, you can diagnose your system without starting up the operating system.To run PC-Doctor, do as follows: 1 Turn off the computer, and then turn it on again.2 When the Lenovo logo comes up, immediately press the Lenovo Care button, F11, or Enter key. The Rescue and Recovery workspace opens. 3 Click Launch advance...