The OneDrive sync client is included with every edition of Windows 10, allowing you to keep a local copy of files and folders stored in either OneDrive or OneDrive for Business.
By default, your files are stored in a top-level folder in your user profile. But if you have a second data drive (including a MicroSD card), you can choose that location instead, saving space on your system drive.
The option to change the sync folder location appears when you first set up OneDrive. If you want to change the location after you've already completed setup, follow these steps:
When you finish OneDrive setup, the sync client will compare your current local files with those in the cloud and won't download those that match.
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Next week: Another Windows 10 tip from Ed Bott