I wonder if there is such a program exists. Perhaps it does so I'd better ask. There are files and folders you don't edit or access frequently. Ideally I would like to completely lock up the files that I rarely alter. No programs are allowed to edit/alter all files/folders which are marked locked. But I'm not sure if it can distinguish command executed by me or by a program. OK, what about this if the above is not possible? Every time you want to edit/alter those files you have to pass some verification, be it password, or doing something like only human can do, like read the screen and click. In short I want a program which can (1) lock read access (2) lock any change (not just the content but the file as a whole, ie. the checksum never changes) (3) pass through some checks or verification before I make any change.