It seems that my antivir deleted the boot record (i think its called boot record but i am not sure) of one of my harddrives. it was only the one where i was storing games and stuff like that but i'd like to have it back ( ) instead of formating it (as windows suggests at the moment)

How can i fix it?
EDIT: its the partition which was deleted

You mean the master boot record? So you can't boot your harddisk?
In this case you can use a program like Snapshot to make an image of your partition and save it on an other partition or harddisk, install Windows to recreate your master boot record and then recover your image with Snapshot.

But maybe someone has a better idea because mine lasts hours.

no its the partition of another hard drive than my windows hard drive. i had this problem before and i know its easy to fix without losing any data ^^
but i dont remember how -.-

@Lukas:
If the master boot record of an hard-disc is destroyed, you can repair it using the Windows Installation Disc.
Just insert it, boot from CD, go to "Repair Windows" and run "fix mbr". At least if I remember correctly from doing so after having crushed mine once

@Puppeteer:
So you have multiple hard-drives or one hard-drive with multiple partitions and your anti-virus software destroyed "something" which resulted in you not being able to see the partition/hard-drive and/or access the partition/hard-drive?
To me it sounds as if just the partition-table was somehow deleted.
However I personally have no idea as how to recover it.
But maybe google does?

If your anti-virus just moved the file to Recycle Bin, restore it!!
But, if your anti-virus deleted it COMPLETELY, try to restore it with TuneUp.

i think it was fix mbr ... or maybe fixboot...
that should work for my other partition too
i'll check it out

i have multiple hard-drives

As I just read, the MBR holds the partition table of the hard-disc, so yes I guess thats what you need to repair/restore.

source:
http://en.wikipedia.org/wiki/Master_boot_record

When I crushed mine, that was of course the first thing I tried but the f****** Vista Installation disk did not have a Repair Option (like good old XP had)
So I had to do it the complicated way. It took about four hours until I could use my computer again

Ah ok. I don't know about Vista. As I'm still using Windows XP. But good to know that Vista (or at least some versions of it) do not include that feature.

I have xp too by the way.
(And i cant find my XP-CD )
(Btw. i will go with some friends to the swimming bath now so i wont answer in the next 2 hours )