Run checkdisk before defragmenting your hard drive
- Wednesday, October 29, 2008, 0:13
- Tips and Guides, Troubleshooting
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- 1 comment
Every one in a while we have to run defragmenter software on our hard disk to keep it on maximum performance. Find out why it is advisable to run Microsoft Windows check disk utility or checkdisk (chkdsk.exe) before defragmenting your hard disk drive.

Microsoft Windows XP built in defragmenter in action
Running Defragmenter, be it the one that came with Windows, or a 3rd party defragmenter software will not run if the drive are flagged as dirty by Windows. The drive are flagged dirty when the drive contain errors.
To fix this error, you must run check disk utility with the checkdisk (chkdsk.exe) before defragmenting your hard disk drive.
There are some 3rd party defragmenter that will force to defrag your drive even if the drive is flagged dirty. This is bad for the health of your drive. Defragmenting a drive that contains error will lead to bad sector. If the bad sector are not fixed by running check disk utility, the drive will contain unrecoverable errors.
Even if you are not defragmenting your drive on a regular basis, you should run Check Disk Utility regularly to check your drive conditions.
More info on checkdisk disk utility can be found on my previous post on Check Disk Utility. I have also posted on how to use the Check disk utility at startup.
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Great post - I wll try this out and hopefully see some improvement in performance.