It deletes temporary and necessary files to lighten up your PC.
Eat some cheese and take a bath then do disk cleanup
Disk Cleanup
Running the disk cleanup utility is a quick way to?
In Vista the path is: Start, All Programs, Accessories, System Tools, Disk Cleanup.
Anything you delete in disk cleanup is a temporary file and non essential to your computer.
removes unnecessary files
removes unnecessary files
Disk Defragmenter
Yes, it is supposed to do that.
chkdsk
For Windows 95, 98 and ME Disk Cleanup, Scandisk Defrag _________________________ For Windows 2000 / XP Disk Cleanup, Defrag, chkdsk/r
disk defragmenter