Blue screen on Windows xp Loading Screen

[invictus]

hi everyone i really need your guyz help i been trying to fix this prob for weeks, it all started when i took out my hd and put it back in w/o makin any changes then nothing would load up it kept askin for me to insert bootable media, anyways i did i repair and now i get to the loading screen but i get a blue screen the error is

stop: 0x0000007b (0x0f7c7a630, 0xc0000034, 0x00000000, 0x00000000)

i installed another windows copy on my other hard drive for temp and i am using that right now, all my windows files are there and so are my old files they seem to be ok but its just not booting, can anyone please help, i am so stressed out about this prob, thx so much!

[joshsiao]

You did not remove or change any jumper pins did you? It may the problem. Becasue removing the HD and putting it back should have no problems whatsoever. I always do this to clean my computer.