If you reformat it, you will have to reinstall windows and everything else. The format will destroy everything on your system.
There is software out there called partition magic that will allow you to take the c partition and divide it up. This would be yoru best shot if you are concerned about reinstalling and loosing all your data and settings.
There is software out there called partition magic that will allow you to take the c partition and divide it up. This would be yoru best shot if you are concerned about reinstalling and loosing all your data and settings.