Chapter 32: Formatting and Partitioning Disks
Checking Free Space You can easily see how much free space is available on any partition. Choose Start | My Computer and select the partition (or drive). Right-click the partition or drive and select Properties from the menu that appears. You see a Properties dialog box with a pie chart like the one in Figure 32-2 (if the General tab isn't selected, click it).
Click the Disk Cleanup button to look for and delete unneeded files.