If this becomes too catastrophic, may I suggest that you divide into three or at least two partitions. That way you never lose data. One smallish partition for Windows, one larger one for programs (just dont let them install to Windows\programs, and one for data (My Documents can be redirected to any place you want it to be.) Partition sizes would depend on how you use your machine. While you're at it, copy all the Windows cab files to c: or someplace like that. It's WAY convenient.