That's what I can't find
Does NTFS / Windows as OS performs checksumming on file movement operations by default?
alike ZFS or somehow else…
Windows – Does NTFS / Windows as OS performs checksumming on file movement operations by default
checksumfilesystemsntfswindows
Related Solutions
I've had success with Sysinternals Process Explorer. With this, you can search to find what process(es) have a file open, and you can use it to close the handle(s) if you want. Of course, it is safer to close the whole process. Exercise caution and judgement.
To find a specific file, use the menu option Find->Find Handle or DLL... Type in part of the path to the file. The list of processes will appear below.
If you prefer command line, Sysinternals suite includes command line tool Handle, that lists open handles.
Examples
c:\Program Files\SysinternalsSuite>handle.exe |findstr /i "e:\"(finds all files opened from drivee:\"c:\Program Files\SysinternalsSuite>handle.exe |findstr /i "file-or-path-in-question"
Best Answer
No NTFS doesn't calculate a checksum. Take a look at Does Windows calculate CRCs to check every file operation? and in the Wikipedia file comparsion table
In the How NTFS Works Technet article you will learn how NTFS works.