While looking how to solve a problem with PC and Windows Ten, I turned One Drive off. When I turned it back on, it seems to be downloading a ton of documents. I did not erase anything, just turned it off and on. And I'm getting a lot of messages saying "you now have 2 copies of such and such file 'cause they couldn't be merged"

Huhh? What gives?

Does OneDrive keep a copy in the cloud and another on my PC? what's the point to this?