A Microsoft file hosting and synchronization service.
Seriously.... What a horrible app. I keep trying to figure out where my files went. Also why Onedrive attempts to take more data than i have space. One drive reports I have 50gb but I only have 5... then trying to access cut or move anything causes my system to slow to a snail. I never would have my 2 systems sync and yet when looking they were somehow linked. Not sure how / why. My plan was to simply drag and drop what files I want to backup but Onedrive was taking anything it could find. The Default should always be no instead of let us take over. I even had search results from my second PC end up in the Amazon search box - why? looking for a simple to use and manage my data cloud - Onedrive is not it.