How can I safely delete everything from OneDrive without losing my local files?

If you're concerned about losing data, make sure everything you want to keep is saved locally first. Once you confirm that, you can go into OneDrive.com and delete everything safely.

I've had a bad experience with OneDrive deleting files before too. So just to be safe, back everything up to a USB before attempting any deletions. You might even want to uninstall the OneDrive app after you copy your files.

You could move your files from the OneDrive folder on your computer to a different location, like C:UsersYourNameStuff. OneDrive typically syncs only specific folders, so moving them elsewhere might let you wipe OneDrive without affecting your local files.

Before deleting, make sure to back up your important files on an external drive. How much data are you trying to delete? This way, even if something goes wrong, you won’t lose anything important.

Another option is to go into the OneDrive settings and pause the sync. After that, you can delete files from OneDrive safely while keeping your local copies. It’s a good idea to mark them as 'Always keep on this device' before doing any deletions.