The Energon Pub

So I've got a brand new netbook with Windows 7 home premium and I want to install Legacy of Kain Blood Omen.
It does work I tried it out but erased the game by accident, now when I want to install it, the install wizard claims there's just 40,000 KB left on my hard drive and that the game needs 195,000 KB. Now I know for a fact that this is BS since the netbook is brand new and has a 250 GB hard drive with at least 240GB of free space.
Any one have a cure or a trick on how I can get this thing to install again? I seriously want to finally play the game.

Thanks in advance.

that happened to me when I went to install mercenaries 2 on my PC after getting windows 7 I tried 6 times each time it told me I didn't have enough memory on my hard drive the difference is it wouldn't let me install my game so it never got erased but it won't install at all I tried deleting stuff from my harddrive didn't work I tried cleaning the disc which wasn't dirty at all didn't work I tried installling it again with a new memory storage device didn't work I haven't tried to install it ever again I don't think it will ever work