Odd folder on my D drive

Hi everyone,
I have 2 drive partitions. I keep my drive D as a backup drive. I don’t open it that much, but I noticed these folders when I checked on it
I attached a screenshot. Any ideas what they are for?
I haven’t done anything about it yet. I’m a bit worried that it is a virus, but I already scanned the entire drive, and it was clean.

Thanks in advance!
