Goodsync - confused about Synchronize or Backup

I need to backup my computer. It was quite a while ago, but I've used Goodsync in the past and remember it being really good. I just purchased/installed the most recent version. But I am very confused about the difference between "Backup" and "Synchronize", and between "File to sync" and "Right". I need to know how to take files from "Source" and copy them to "Destination". I want the files to overwrite pre-existing files in "Destination". But if "Destination" has files that "Source" doesn't, I dont want them deleted. Though, I'd also like to know how to do the same process, except DO delete files in "Destination" that "Source" doesn't have.
I created a job with a "Backup" type, but when it analyzes, it shows files that look like they might be deleted if I process it. This is where the "File to sync" and "Right" come into play. Do I "sync"? Do I "right"? how do I know what to do. "Backup" type says that it includes the deletion of files. So does that mean that if "Source" has files 04-13, and "Destination" has files 01-10, then after "sync" process, "Destination" will now have files 04-13? With 01-03 having been deleted? I want this option for sure, but I need to know how to make it where "Destination" ends up with files 01-13, files 04-10 having been updated.

I definitely don't want "Destination" files to have any effect on "Source" Files, unless of coarse I created a new job. So, I don't see "Synchronize" as being the option I want.

Ive seen a couple of youtube videos that demonstrate the very very very basics of creating a job, but they don't go into situational explanation.

Any help would be deeply appreciated.

Windows 10 1909 (OS Build 18363.778)
Goodsync 11.1.6.9 (x64)

That's a common problem. Some programs have better and more clear cut instructions.

Usually, I say Usually-------"sync" would imply some sort of two way interaction between source and destination.

Which you DON'T want.

You want one way--left to right aka source to destination, not the reverse.

Usually, I say usually, "one way", so that the destination is a match to the source after the backup is run, is referred to as "mirroring" or some similar word.

It may be that the geniuses at Goodsync use the word "right" to mean what other applications call "mirroring".

But you are subject to the whim of whatever help file or instructions you are looking at--so ANYTHING is possible.

Advice:

Copy a couple of not particularly important folders to a temp folder and then experiment on THEM ONLY. See what happens and then apply that to your important folders.

Don't take anything for granted. Don't make assumptions. Learn by trial and error.

You could always change to another application with a better help file--such as Second Copy, Karen's Replicator, SyncBackFree, etc.

ignatzatsonic said:

Copy a couple of not particularly important folders to a temp folder and then experiment on THEM ONLY. See what happens and then apply that to your important folders.

.....
You could always change to another application with a better help file--such as Second Copy, Karen's Replicator, SyncBackFree, etc.

That's an amazing suggestion! Thank you! I'll have to try it in the morning, but I think doing that will help me understand how the different options work.
Thank you again for breaking it down and for alternative program suggestions.