Solving Windows 7 Volume Errors
This Simple Guide shows you Visually and Step-by-step How to Check for Errors a Windows 7 Volume with the Disk Management Tool.
This Procedure may be Necessary prior of Shrinking a Microsoft Windows Ntfs Volume.

On the Start Menu
Search for ‘disk’ and Launch the ToolRight-Click on the Ntfs Partition and Select Properties.
Select the Tool Tab
Then Click on “Check Now.”
You’ll be Prompted for a “Scheduled Check” so Confirm and ReBoot