Advent PC Windows XP Media Center
To restore your Advent Media Center machine you will need the System Recovery CD set supplied with your computer.
Place CD 1 into the DVD drive and restart your computer.
Press R on the keyboard when prompted.
Select the Reinstall Windows option and confirm when asked to do so.
Replace the CD with the next one when asked to do so.
When recovery is complete you will be asked to remove the CD and restart the computer once more.