Using Chkdsk to find and fix disk errors
From http://www.top-windows-tutorials.com/chkdsk.html. Lean how to use the Microsoft Chkdsk (check disk) utility to find and fix problems with your storage devices. If you have a problem with your hard drive, USB flash drive or memory card, running the Microsoft “Chkdsk” (check disk) utility can often solve the problem.
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