I have the same issue. I made the mistake of buying the $99.95/year office 365 subscription. They include 1TB of cloud storage with that. I never EVER intentionally setup OneDrive. In fact, I've been ignoring it for about ten years. I backup my files locally. I store my files locally on my computer and I backup all my PERSONAL files and PERSONAL photos and videos locally. I use Google drive for some stuff that I want on multiple machines. I have never wanted to use OneDrive, and I have never intentionally installed it.
(And to be clear, I'm a webtech entrepreneur who built, scaled, and exited a successful SaaS business, so I know how to use technology. Quite well in fact.)
Anyway, my computer recently did an H2 update from last year and it appears that as part of that Windows software update, Microsoft decided ON THEIR OWN to just change the settings in OneDrive so that My Documents and Desktop and Pictures are now automatically required to participate in OneDrive. And so all my files were copied to OneDrive.
Worse than that - much, much worse actually - many/most of them appear to have actually been moved off of my computer and now reside only on OneDrive and anytime I go to open one, it has to wait to download it from the cloud. Which sometimes takes quite a long time.
I'm so, so furious about this. So furious. This should be a class action lawsuit.
Here's what's worse: Microsoft has effectively *stolen* my files and is now holding them *ransom*. Why do I allege this? Because from others' comments in this forum, it's clear that if I cancel my Office 365 subscription and the storage drops from 1TB back down to the free 5GB, then the 120GB of files that were offloaded from my computer and onto OneDrive will become completely unavailable to me. The only way to get these back, if at all, will be to resubscribe to Office 365. This is ransom, plain and simple.
It's clear from reading others postings this is going to take me hours if not days to untangle. I hope I can get it back to the way it was before, and get my files out of their cloud. (Good luck with that, they will have been copied and copied over and over already to more and more systems and I'm sure they'll always be there. All my personal photos and personal files.) I don't have this time to spend. I did not choose to spend my time this way. It's one of the last things I want to do with my time.
I'm super, super pissed. This is a total violation of consumer trust. They should be sued. Maybe they will be.