I zeroed the hard drive i installed on an HP a520n which was xp. I changed to win 7 and it did not perform goo so after i tried reinstalling xp it stated
Windows failed to start. Arecent hardware change or software change mightbe the cause
1: insert your installationdisk & restart
2: choose language click next
3: click repair your computer
0xc0000225
The boot selection failed because a required device is inaccessible
That's all i can get. I cannot get into the bios or use a boot up or cannot get any further than that. Just freezes there so have to force shutoff.