- Click Start | Programs | Accessories | System Tools | Disk Cleanup
- Click Start | Run | cleanmgr
- Right-click disk in Windows Explorer or My Computer | click Properties General tab | click Disk Cleanup
Another utility you need to run is Disk Defragmenter:
- Click Start | All Programs | Accessories | System Tools | Disk Defragmenter
- Click Start | Run | dfrg.msc
- Click Start | Administrative Tools | Computer Management | Expand Storage | Disk Defragmenter