[monkey_trouble]

sometimes when i start my comp it dosent load windows it gets stuck and a black screen with a white flashing line thing..whats wrong with it?

[Presto]

Do you have a disc in the drive, or perhaps a flash key in the slot? Your system might be trying to boot from that.

[FOREVER]

can be a sign to reformat ;)?

[PornMaster]

check your bios settings to see if its trying to boot something else, just make it boot hard drive 1 or something

[duyxngoc]

Your files may be corrupted , can you try to get into safe mode ?

[FerrariEnzo]

too much porn!!

reset your bios?

[monkey_trouble]

how do i reset bios? lol

[3klipze]

google is your best friend

[Dragon-88]

corruptive O/S or bad hard drive.

[Riddle]

Newer motherboards have CMOS reset button. Press that and you're good. You can yank out the battery for few minutes also to do it manually. Easiest thing to do would be look at the motherboard manual.

If your system files are corrupted, you can do a repair with your OS disc.

Edit: If your computer is pre-assembled, can you post your model #?