How do i defrag windows vista?

Click Start. Type defrag in the search window at the bottom and hit <Enter> key. Or the classic way.. Start>Programs>Accessories>System Tools>Disk Defragmenter.  more

Try this: 1. In Windows Explorer (aka the Computer icon), right-click on the drive you want defragmented. 2. Select Properties. 3. Click the Tools tab. 4. Click the Defragment now button. Hope that helps.  more