Asus Eee PC 900A Series User Manual page 62

Click OK in the Recovery System for Eee PC dialog box.
4.
5. Click Yes to start the system recovery.
You will lose all your data during the system recovery. Ensure to
back up your important data before recovering your system.
6. After the system recovery is completed, eject the the Support
DVD from the optical drive and click OK to restart the Eee PC.
5-6 Chapter 5: Support DVD & System Recovery