What program can make a backup by regular copying?

Question

Backup

Tell me, what program can make a backup so that there is a simple copy of changed or new files from the specified folders to an external drive?
That is - not creating an image for recovery, encrypted archives and other dregs?
Windows archiving is not reliable, I don't understand its logic. When the system crashed, I found in the "File History" only 20% of what I expected.
I need a high-quality reliable program that can append files to an archive disk in the background, so that I can access them at any time without "restoring from an archive" and so on.

Answer 1

Windows Backup - not reliable

Quite reliable. not very comfortable, yes.

I don't understand her logic

It happens.

When the system crashed, I found in the "File History" only 20% of what I expected.

What is the file history?

You need a high-quality reliable program that can append files to an archive disk in the background

Copy

Answer 2

For synchronization under Windows, I use
nnbackup