windows reinstall

[indie1978]

i just rebooted and it split my hard drive in two containing the caruption in drive c: now im using all programs on drive E: Whats my problem? theres no memory on drive E : can i delete drive C: from the system( if so how would i do this?) and will this increase my memory in drive E: ? or am i stuffed like a chicken ? lol (FYI ) it was a bootleg disk i got for nothing so cant refer to any manual . thanks very much all suggestions and help will be appreciated. p.s tried formating that drive would not allow it.