HP TouchSmart 520-1200 Quick Setup Manual page 16

Symptom Possible solution
Computer seems Use the Windows Task Manager to close any programs not responding, or restart the
to be locked up computer:
and is not
1. Press the Ctrl+Alt+Delete keys on the keyboard simultaneously.
responding.
2. Click Start Task Manager.
3. Select the program that is not responding, and then click End Task.
If closing programs does not work, restart the computer:
1.
Press the Ctrl+Alt+Delete keys on the keyboard simultaneously.
2. Click the Arrow button next to the red Shut Down button, and then click Restart.
Or, press and hold the Power button on the computer for 5 or more seconds to turn off
the computer, and then press the Power button to restart the computer.
Error message: When drive activity stops, remove the disc and press the spacebar on the keyboard. The
Invalid system computer should start up.
disk or Non-
System disk or
Disk error.
12 Chapter 5 Troubleshooting