Ok I agree the CHKDSK R through the console won’t fix this issue.
But a full repair possibly would.
We are not talking about a user that has a mirrored or stripped disk though.
As for wiping disks using a low level format so that data can not be recovered i have heard that active kill disk is one of the best format tools on the market but i am sure you are aware of that.
I am not questioning any of your credentials, I don’t where you have got that impression from and no I don’t want a copy of your accreditations.
We are trying to help a member with a problem nothing more nothing less either to help him fix it, or give the member enough information so that a 3rd party company doesnt rip him off.