G Drive

Hi all.
I had Windows backup set to copy any changes to my pictures folder on my C drive, to my D drive.
My latest check shows it seems to have stopped copying.
I've tried setting it up again via Windows file back up, but my D drive isn't there.
Part of the issue or not, I have since noticed a G drive has appeared, which is of similar size to my D drive (232.88 as opposed to 232.25).
I've been to disk management and there is the G drive, as a new volume next to my D drive.
The only reason I can find online is Google drive.
I don't have Google drive installed.
Any idea why this 'ghost' has appeared, would it have anything to do with the back up issue?
If not, how do I safely get rid of G anyway and any other ideas why it stopped backing up?
Cheers

 

Time ran out to edit.
Scrap that.
It's just an unused partition on my D drive, strange thing is, I don't remember splitting the drive but I am getting on a bit
So, putting the non existent G drive issue aside, any idea why backup stopped and why I can't see my D drive in Windows backup?
Cheers