I got a new laptop at work and everything, every file I worked in, was creating a second copy of itself on OneDrive. It was so annoying and took awhile but I found instructions on deleting the duplicates.
It took all the files off my local machine and left the ones on OneDrive.
Aaaargh!
We are here for you at [email protected] if you would like to drown your sorrows in something delicious.