file lost while changing file permissions

Solution
That is the natural consequence of denying everyone permissions to see the file. If you are lucky, and you know where the file was, you may be able to reset the Permissions in the folder's settings. However, it's probably better to use System Restore to go back to the last restore point before you took that action.
That is the natural consequence of denying everyone permissions to see the file. If you are lucky, and you know where the file was, you may be able to reset the Permissions in the folder's settings. However, it's probably better to use System Restore to go back to the last restore point before you took that action.
 
Solution