HELP!!!

Ok guys, I really need some help, are there any computer genius's on my flist?

I just bought a new external hard drive for my computer, except it doesn't seem to work.

In Device manager it says: This device cannot start. (Code 10)

When I google that it seems that there's either something wrong with the registry or something

Or there's a BIOS error, and I need to instal updates or something.... (can you tell I know what I'm talking about?).

I found this one webpage that tells you how to "flash" your BIOS, but doesn't really tell you where to get anything other then it's somewhere on the inside of my computer....

I really don't want to fuck my computer up, so if there is *anyone* who can at least give me some pointers, well, I'd do just about anything for you.

Please?

*cries* I need help!