Error Message :The file or directory is corrupted and unreadable solution

 The file or directory is corrupted and unreadable solution

<drive>:\<folder> is not accessible
The file or directory is corrupt and non-readable.The file or directory is corrupt and non-readable. The file or directory \<folder> is corrupt and unreadable.
Please Run the Chkdsk utility.

Example :
 Attempt to repair the damaged file, folder or file system index using Chkdsk. To do so, follow these steps:

1. Click Start, and then click Run.
2. In the Open box, type chkdsk /f <drive>:, where <drive> is the letter of the drive on which the damaged file, folder or file system index exists.
3. Click OK.

NOTE: If the hard disk is large, Chkdsk may take several minutes to several hours to complete.