If you’ve recently bought a new Windows 7 computer, you’ve probably got a 300+ GB drive with your operating system, programs and all the pictures, text and video you transferred over to the new computer. What I like to do is to divide the hard drive into two partitions – one for the operating system and one for the data (pictures, video, graphics test)
The advantage to this system is that you can frequently and easily backup your C: Operating System to an external drive so that if your computer ever gets a virus/malware/ it’s easy to restore that partition without affecting your data. I also backup before I install a new program so that if I have a problem or the program doesn’t uninstall properly I can easily restore my latest backup.
While I’ve used Partition Magic in the past, there’s a new free program which has some great reviews.
Partition Wizard Free Home Edition