Run Chkdsk in Read-Only Mode
Running Chkdsk in read-only mode does not correct any corruption. After Chkdsk runs against the volume and the results are displayed, you can then you can determine whether the volume is potentially corrupted and take action. To run Chkdsk in read-only mode, follow these steps:
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Click Start, click Run, type cmd.exe in the Open box, and then click OK.
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At the command prompt, type chkdsk VolumeLetter: (for example, chkdsk c:), and then press ENTER.
If the volume is potentially corrupted, run Chkdsk in repair mode, or schedule Chkdsk to be run during a convenient time.
When you review the results of Chkdsk in read-only mode, keep in mind that all files reported to be corrupted may not actually be corrupted. Because the volume is online and Chkdsk cannot lock the volume for exclusive use, any file Chkdsk finds that is currently in use, with an open handle, will be incorrectly reported by Chkdsk to be corrupted.
If Chkdsk in read-only mode reports corruption, one method to determine whether there really is corruption is to run Chkdsk against the volume three or four times and then compare the results to see whether the same files are being reported as corrupted. In-use files should have their handles released after a period of time, and in-use files should not appear in the list of corrupted files in all instances.
For more information about running Chkdsk in read-only mode, see “About Running Chkdsk in Read-only Mode” on page 27 of this white paper.
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