It can upload or download this quite easily but synchronizing between two sources (cloud and local) it cannot do so well. In my case, this is approximately 250 gb. Onedrive is obviously not capable of an initial sync of large amounts of information. I hope you will share this with other people who are having my problem. This is not something that is on any Microsoft thread, but it should be. Okay, well you guys have obviously given up so I will provide you with a solution that I have found on my own. Hopefully it will help some of you with the same problem. Here is my correspondance with onedrive support. I had nothing but problems with syncing onedrive files online and locally stored. If OneDrive isn't syncing any files, it could be a connection problem, which you may be able to fix by restarting the app. How to fix sync problems with OneDrive restarting app

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How to fix sync problems with OneDrive selecting correct folders.How to fix sync problems with OneDrive checking online access.How to fix sync problems with OneDrive updating app.How to fix sync problems with OneDrive connecting Microsoft account.How to fix sync problems with OneDrive restarting app.

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