Defragment Your Computer or Hard Drive
Fragmentation makes your hard disk do extra work that can slow down your computer. Disk Defragmenter rearranges fragmented data so your hard disk can access information more efficiently.
Windows 7: Disk Defragmenter runs on a schedule, but you can also defragment your hard disk manually.
- Before defragmenting, close any open programs and don't use the computer until it is finished!