They all reappeared on my HD.

[djh]

My technian recommended and installed FreeFileSync. I'm not sure how it works. I always used to do backups manually.
I deleted a lot of old & unnecessary files from my HD. After I did a FreeFileSync, they all reappeared on my HD. I desire that FreeFileSync to backup what is presently on my HD and not restore missing files.
May I ask for your assistance?

[xCSxXenon]

Read the documentation first