Hi @County Couriers ,
What's the meaning of "I disabled a few unknown PC's"? Did you remove accounts or other ways?
Did you get any error message when users try to login OneDrive?
What kind of account did you use?
I suggest you refer to this thread and check if the reply of AlpeshBorad-4657 is helpful:
https://learn.microsoft.com/en-us/answers/questions/58796/how-to-re-enable-the-device.html
Try to provide more information about your problem and I'm glad to help you.
If the response is helpful, please click "Accept Answer" and upvote it.
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