Disk Write Caching

by Mitch Tulloch [Published on 23 May 2006 / Last Updated on 23 May 2006]

How and why to disable disk write caching.

While having disk write caching enabled on computers gives them extra performance by making disk writes more efficient, it can sometimes interfere with how certain applications work on these machines. If this is the case then you may need to disable disk write caching on these machines.

To disable disk write caching, open Computer Management, select Device Manager, expand disk drives, right-click a drive and select Properties, select Policies and select the appropriate option.

While disabling disk write caching can add a performance hit, it does increase the reliability of the machine since having a power failure after an application write (but before the disk write cache is flushed) can sometimes result in file corruption or application failure.

Mitch Tulloch
MVP Windows Server

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