Windows XP alerts you when disk space reaches a critical level, but you have several options to free up hard drive space. XP includes an built-in utility, called Disk Cleanup, that deletes unnecessary files from the most common locations. More disk space can be gained by deleting files manually or moving them to an external hard drive.
Low Disk Space Warning
· Windows XP warns you when it detects your computer is running out of disk space. The first warning comes when less than 200 megabytes of space is available: a pop-up window will appear for ten seconds once every session (