Help Cancel XP Installation

jonahlschwartz

Honorable
Jan 12, 2013
5
0
10,510
Hello,
I halfwittingly decided to re-install windows xp on my computer, half-way through the installation I realized I did not have the correct discs. How do I cancel this installation? I've tried F3 on the installation screen, F8 brings up a seemingly useless boot menu, and safe-mode will not work due to the lack of an OS installed. I have windows 7 discs at the ready if this makes your task and simpler.
 
Mind you, it is in the middle of installing XP, it asks me to insert the WinXPSP2 disk, and since I cannot, it sits at that screen until I reboot. The screen looks like... http://www.blackviper.com/os-install-guides/windows-xp-professional-install-guide/install_windows_xp_pro_17/