system32 file hal.dll is missing

I hope this is the right place to post this..

So hi there, I started up my pc, but get the message that it can't start up because the system32 file hal.dll is missing, been like this for a few days.
I don't have a reinstallation disk, because I don't think I got one with it.. and windows won't boot up.
Is there any way I could fix this problem without the disk? Also, I have little money to buy one.
I'd appreciate any help you could give, i'm not good with computers at all.