You may also want to look at this as it is different to what I already pasted;
Restore the PC to its original condition with the HP Recovery Manager if Windows Vista is not accessible
If the PC cannot launch into Windows, it may still be possible to use the HP Recovery Manager on the hard drive to restore the computer to its original operating condition by first pressing the
Power button to start the PC, and then pressing the
F11 key to start the HP Recovery Manager.
NOTE: Depending on the BIOS version, your computer may display multiple prompts during startup including
F11 to start System Recovery. Pressing the
F11 key on a computer with an HP factory image will start System Recovery even if the prompt is not displayed.
- If the HP Recovery Manager can access the hard drive, a prompt is displayed to backup the user files before beginning the recovery. Follow any on-screen instructions.
- If the HP Recovery Manager cannot access the hard drive to fix any system errors, use the set of recovery discs to recover the hard drive to its original condition.
Restore the PC to its original condition with the recovery discs
If the PC cannot access Windows, and the Recovery Manager cannot be started by selecting the
F11 key on start-up, use the recovery discs to start the PC and restore the hard drive to the original operating condition by following the steps below.
NOTE: Please be aware that using your system's recovery discs may take two hours, and that using discs ordered directly from HP may take four to six hours and include several restarts.
The HP Recovery Manager function on the recovery discs examines the condition of the hard drive and attempts to fix any system errors so that the PC can start and run Windows. If the disc sectors used by the HP Recovery Manager are corrupted or cannot be repaired, the Recovery Manager will overwrite all the data and reconfigure the entire hard drive.
Use the recovery discs to restore the PC by following the steps below.
- Open the disc drive door and turn off the PC.
- Insert the first Recovery disc in the disc drive and close the door.
- Press the power button to turn on the PC.
- The HP Recovery Manager window appears during the boot process.
- If the HP Recovery Manager can access the hard drive, a prompt is displayed to backup the user files before continuing the recovery.
- If the HP Recovery Manager cannot access the hard drive to fix the system errors, the HP Recovery Manager will overwrite all the data and reconfigure the entire hard drive to its original condition.
- Follow the prompts to insert any additional recovery discs in the disc drive.
After restoring the PC to its original factory template condition, it is
extremely important to obtain and install updates for the PC and its software, which has been released since the manufacture date of the PC. Use the
HP Drivers and Downloads page to search for updates relating to HP Update, HP Health Check, and HP QuickPlay. Also, search for an updated BIOS and any updated device drivers.