This simple program find difference between 2 vss snapshots by using USN journal and print, what files added, deleted, changed.
This project is under development.
The project can be started with Visual Studio 2019.
[VSS] https://docs.microsoft.com/ru-ru/windows-server/storage/file-server/volume-shadow-copy-service
[USN] https://docs.microsoft.com/en-us/windows/win32/fileio/walking-a-buffer-of-change-journal-records
[STACKOVERFLOW] https://stackoverflow.com/questions/7421440/how-can-i-detect-only-deleted-changed-and-created-files-on-a-volume/7459109#7459109