I installed Window XP on a separate partition, say, drive C, with a space size of almost 3 GB. I have tried to install all the programs or save files on the other drives. However, I found that I quickly ran out of free disk space on Drive C. When I was installing some program ( on a drive other than C, of course), what usually happen was that the C drive would have some 1/3 or even half of the program size of disk space taken off. Even if no program was installed, the free space of Drive C still kept coming down. I also found that the "documents and settings" folder is growing especially fast. I often got the "low disk space" alert. How can I solve this?