What program to use for incremental backup?

Question

Backup

The most important point is that when changing a small part of the file, the entire changed file is not copied during subsequent copying. If there are free programs it would be generally excellent.

Answer 1

This is the dump program, and its levels from 0 to 9 set the copy mode. There is a lot of information on the net about this. Read. Here analogues for Windows link

Answer 2

Use the regular archiving mechanism, it is implemented there.
From third-party and free - zpaq , you can also use various implementations of Rsync for windows, for example xdelta