Allow 'chkdsk' to provide Error Code and Recommendations

When chkdsk is run on a disk with corruption, sometimes it returns with an error code.
When this happens a message just shows as follows:
"Chkdsk was unable to complete successfully."
It would be good to display the actual error code.
Also, if the error is STATUS_DISK_CORRUPT_ERROR running 'chkdsk' again might fix this.
Telling the user that this is possible would be good.

I have created a patch to implement these improvements: chkdsk-error-return-07.patch .

Here is an example with these patches: