|So you tried to install windows 7 on the computer but it crashed so you pulled the hard drive and threw out the computer? And now you've connected the drive to another computer and are trying to access it? There shouldn't be an 80 gig 'system reserved partition' but there may be a smaller one on an 80 gig drive.|
If all you're seeing is that partition then maybe the 'crash' left nothing to see on the partition you attempted the installation on.
Or if this is a 'take ownership' issue then here's the method for XP:
and windows 7:
(I'm not sure which you're viewing the drive from.)