Volume Revert: Bad block encountered during revert operation

Details
Product: Windows Operating System
Event ID: 61
Source: VolSnap
Version: 5.2.3790.1830
Message: Volume Revert: Bad block encountered during revert operation
   
Explanation

During a shadow copy revert operation, the information stored in the shadow copy storage area (also referred to as the Diff Area) is copied back to the original volume. During this process, a bad block was detected. The revert process will continue, but the data contained in the bad blocks may be inaccessible or corrupt.

Cause

A bad block was encountered in the process of copying blocks of data from the Diff Area to the original volume.

   
User Action

When the revert operation has completed, run chkdsk /r on the original volume and on the volume where the Diff Area is stored to fix any file system metadata that may have been corrupted by the bad block.

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