my comp crashed when system recovery was in operation and now i get blue screen with error code c 0000221 im trying to repair it with disc but keeps asking for password that i have not put on system my system is xp pro help
That error code is for a bad check sum. the check sum is used to validate that the program was correctly read from the recording medium. I would check the CD - is it scratched? is it covered in dirt or finger prints?
You might also have a bad CD drive and need to replace it.