Write Caching Will Improve Performance On SATA Drives

This feature is disabled by default in Vista because if your computer loses power before a write is completed, you can lose data. If you’re confident in your UPS’s capabilities, crank it up and you’ll see at least a 10 percent improvement in performance. Remember, write caching is supported only on SATA drives. The options are grayed out for older ATA disks.

In Explorer, right-click the drive you want to speed up and select Properties. Click the Hardware tab, select Properties again. Click the Policies tab. Check both of the boxes beneath “Optimize for performance.”