Speed up Hard Drives under Windows Vista

"speed up SATA drives and the second to speed up USB drives. Both options can be easily configured in the Device Manager. Advanced write caching features are supported by Windows Vista but not enabled by default. I’m not sure why Microsoft decided to disable the feature by default but it surely helps system performance to enable it. Just make sure you have an SATA drive installed.
So, open the Device Manger by either typing device in the search box of Windows Vista or typing devmgmt.msc from the command line. Go to the disk Drives tab and right-click the SATA drive and select Properties from the menu. Now select the Policies tab and check the box Enable Advanced Performance. You have to repeat the process if you have more than one SATA drive installed on your system
You have to perform almost the same steps to speed up usb drivers under Windows Vista. Open again the policies tab of the USB drive and select Optimize for Performance from the options there. This method has one little drawback, you need to Safely Remove the Hardware if you want to unplug the device from your system. "devmgmt.msc "