|Technical Rating: |
|Published Date : 09 Jun 2005
Last Updated : 22 Oct 2010
Content Ref: TEC429441
|What Check Disk does and why it should be used|
Check Disk inspects the physical structure of a disk to make sure that it is healthy. It can repair problems related to bad sectors, lost clusters, cross-linked files, and directory errors. These types of problems can arise in a variety of ways. System crashes or freezes, power glitches, incorrectly turning off a computer, can all cause corruption in the file or folder structure. Physically bumping or jarring a computer can cause the head that reads disks to hit the surface and damage sectors. Once some sort of error occurs, it can propagate to create more errors so a regularly scheduled disk checkup is part of good system maintenance.
Check Disk can also serve as an early warning that a hard drive is deteriorating. Disks gradually wear out and sectors may become bad. If Check Disk starts finding bad sectors, that is a sign that a drive may need replacing. Unfortunately, many hard drive failures are sudden, but nonetheless Check Disk is an important line of defense.
Note: The scan could take hours or even all day if there are bad sectors, therefore downtime should be scheduled. Also make sure you have a working backup before performing the procedure.
Follow the procedure below to run Check Disk to fix errors on your drives.
- Log on to the server as an Administrator.
- Open My Computer, right-click on the drive you want to scan and select Properties.
- Select Tools.
- In the Error-checking section, click Check Now.
- Tick both 'Check disk options', and click Start.
Check Disk option|
- On a Microsoft® Windows® 2000 server, a message may appear stating "The disk check could not be performed because exclusive access to the drive could not be obtained. Do you want to schedule this disk check to occur the next time you restart the computer?"
- On a Microsoft® Windows® 2003 Server, the equivalent message is "The disk check could not be performed because the disk check utility needs exclusive access to some Windows files on the disk. These files can be accessed only by restarting Windows. Do you want to schedule this disk check to occur the next time you start the computer?"
In both cases, you should select Yes.
You can now follow the above procedure on other drives if you want to scan them as well. All the drives will then be scanned during a restart. Once the server has completed the disk check and rebooted, a report on the check can be found in an informational winlogon event (Event ID: 1001) in the application event log.
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Document Keywords: scandisk, scan disk, disk errors, checkdisk, chkdsk