Enable Write caching on device

This is an option which allows the OS to flush changed data to the hard disk when the system is idle, so that performance is not affected when in use. For enabling this, do the following:

    Press Windows key and while holding it down, press Pause/Break key.
    In the window that appears, click on Device Manager in the left hand pane.
    In the next window that appears, expand Disk drives.
    The drop-down list will show the hard drive. Right-click on it and select Properties.
    Click the Policies tab in the Device Properties window (refer figure).
    Check the box next to "Enable write caching on the device"
    You can as well check the box next to "Turn off Windows write-cache buffer flushing on the device" and then click OK.

Note: However, there is one disadvantage in enabling these options – if there is a power outage or a system crash, data might be lost or corrupted. If you have a secondary power supply, like a UPS, you could go ahead with checking these options.