Uninstall

I was thinking the same thing, but when he said " the documents of purchase state 500GB HDD " i thought it came with 500GB. :S

Drives are sold by the decimal measurement since that is the physical capacity used there. You wouldn't buy a drive that was listed as 465gb but would a 500gb simply being more of a rounded off figure to start with. Plus you have to take into account drives being used for other OSs besides Windows.

Now if you simply convert the gigs into bytes you can also see where the 500 figure also comes up in binary form as well exactly exceeding 500 with 500, 105, 211, 904 for the 500gb host drive here as seen in the image. That figure will vary between different models by the same brand as well as when comparing others as well.

I had no idea about that + i hate any kind of maths...
And im a she not he.... (guess that explains a lot no?)

Anyway Wipe Drive removed everything.
Il try installing vista a bit later and see how it goes.

Just one more thing...
You guys talked something about a drive being bad or something...
Yes it got me worried. How do i check if everything is good with my comp :S

With most of the older brands of drives(WD, Seagate, Maxtor) you can go directly to their support section and download their diagnostic tools. A freeware like HD Tune is another one for quick scans and performance charts you can download and run as a stand alone utility from HD Tune

WD and others always had a separate floppy download you should be able to burn to bootable cd. You manually start the dos type of tool at a prompt. I would need a manufacturer's support page for that model to look over the specifications for which brand of drive is used.

Bad ram, bad drive, weak cpu? Any of those will cause a list of problems! You know something is wrong when two different versions of Windows refuse to install?

If this is under a warranty I would be right back there to have them fix or replace the unit. But something's apparently wrong with it.

At least you're covered! whew!

I would jump on that fast since it seems to be an existing fault bought like that brand new where you can return the unit for exchange or refund as long as you didn't do too much to risk voiding the warranty itself. Go back and say "hey what's wrong with this?!"! Hopefully they will simply put you into a working replacement without fuss!

At least that saves you some headaches of being stuck with a nice large paperweight! Let's hope they know how to fix it correctly if it isn't simply replaced.