The computer froze up so i restarted it and when i did a blue screen came up that said that the memory had been dumped and that i had to reinstall all of the software. when i followed the prompts it said to put in the second pack for the windows xp. the only one that i could find was a burnt copy and when it came down to put in the product key i can not find the correct one. now everytime i cut the computer on or off it goes straight to the installation screen. i can't get it off and i cant get anywhere else on my computer. how can i make the installation end and just wipe my computer out and start from scratch?