What is this Backup subfolder in Scrivener ?

under my regular C:\Program Files\Scrivener there is another subfolder called C, and another sub-folder under that called Program Files and under that, another Scrivener folder with what looks like a copy of the real Scrivener folder
(see screengrab)

Why is that there, and can it be deleted?

PS have not had any problems in Scrivener BTW
Scrivener bu.jpg

The auto-installer makes a backup before it runs, so that if the update process fails, the original files are still available. In earlier versions of the installer, there were occasional cases where the backup files weren’t correctly removed, so that looks like what you’re seeing. It’s safe to just manually delete that whole backups folder.