A Cyclic Redundancy Check is a self-checking mechanism engaged in by all computers, whereby the machine regularly checks its own hard drives or optical disks for errors. When you experience a Cyclic Redundancy Check error it means that data on the hard-drive or DVD has become corrupt, or cannot be read for some reason.


Several checks need to be carried out with regard to this error message in order to ensure that the problem is diagnosed correctly.

The first thing to try to alleviate this issue is to run a disk checking operation. This can be done through the Windows CHKDSK application. CHKDSK can be located within the ‘My Computer’ folder in Windows; once the window is open right-click on the appropriate drive and select ‘Properties’.

Alternatively, it is possible to run this program through the command line interface. This can bypass any problems which sometimes occur with running it through ‘My Computer’. To do this, firstly run the CMD as an administrator, to do which go to the Start menu and type ‘CMD’.

Once the CMD has been opened successfully, type chkdsk D: /f /r. ‘D’ here signifies the affected Drive, so ensure that you check what letter your affected drive is assigned to before you continue.

Next run the DiskPart utility. This can also be accessed through the Start menu by typing ‘DiskPart’.

Once you have loaded the utility, run the ‘rescan’ command. This should be easy to locate within DiskPart and simply locates and scans any new disks that may have been inadvertently added to your computer. This should hopefully resolve the issue, and it now should be possible to explore your disk appropriately.

If you need to look up the logs of the CHKDSK utility then these can be located through the ‘My Computer’ menu as well. Go to My Computer > Manage > Event Management > Application logs.

Once you access the CHKDSK application, you will receive a message informing you that you need to reset your machine in order to perform the check. Thus, click the ‘schedule’ button and then restart the computer.

Once your computer has restarted, go to the ‘Tools’ tab within CHKDSK and click the ‘Check Now’ button. A window will appear, ensure that the ‘Automatically check for filesystem errors’ and ‘Find and repair bad sectors’ boxes are checked. Once this is done, click ‘Start’.

When your computer has completed this process it will need to be restarted again, and the problem should then be resolved.