Help need on hard disk space increase

cs7

New to this forum
Dear members, I saw a strange thing.

My friend has one spare 30 GB hard disk. One day he showed me that he has virtually increased the space of the same 30GB HDD to 500GB with four partitions.

When i checked the hard disk setting at bios, it is showing 30GB, but when I am entering device manager from win XP the hard disk is showing 500GB space with four partitions. I asked him, but he didn't told me how he made this strange configuration.

Can anyone please help me how this can be done.

Regards,

Chandan
 
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