canadianvice :
I'm afraid I don't know, just by looking.... but would it be possible to go into "Create and Format Hard Disk Partitions" (caution: don't do anything there, as it can destroy data if not used correctly. Just look at the partitions it lists) and see if there's one with a matching name? If so, can you screenshot that or at least obtain its size?
Size is usually a decent indicator of what something is. Additionally, is the system a pre-built OEM or one you built?
I bought it pre-built from a store, I bought it new though. I've been using it for a year now and I don't remember seeing that the last time I did my once-in-forever cleanup.
Imgur link to what you requested:
https://imgur.com/xyaTIGo
It seems to be occupying 417MB and it's labeled as a "recuperation partition" although I don't remember creating one and don't know what is it for.
Edit: Also, it isn't the same name.