How to Disable Vista's Scheduled Disk-Defragmenting

1. Click the Start button.

2. Type Disk Defragmenter and hit Enter.

3. Clear the checkbox marked Run on a schedule (recommended). 

4. Click OK and you're done!



Disk Defragmenter serves an important purpose: to keep your hard drive running at peak efficiency. So if you do decide to pull the plug, make sure to run the tool manually from time to time, or replace it with a third-party defragger.