Configuring microSD card slot in Surface Pro

<p>You may be thinking of Storage Spaces, which lets you combine multiple storage devices into a pool of storage. I'm not sure I'd use that for this. Your internal drive and the SD card would have dramatic differences in speed and reliability. I'd want to strategically select what I placed on the SD card for that reason. When you pool, you can't easily control which drives are hosting which files. I would not want critical OS or app files on the SD card. I'm fine with OneDrive backed files, media, and less critical apps being on a separate drive or SD card.</p><p><br></p><p>You could also mount the drive as a folder. Take a look at this: <a href="https://www.windowscentral.com/how-mount-hard-drive-folder-windows-10&quot; target="_blank">https://www.windowscentral.com/how-mount-hard-drive-folder-windows-10</a&gt;.</p><p><br></p><p>In the days of Surface (ARM), I'd point my OneDrive folder to an SD card to keep the system drive as free as possible. Have you considered this? <a href="https://www.windowscentral.com/how-change-default-onedrive-folder-location-windows-10-0&quot; target="_blank">https://www.windowscentral.com/how-change-default-onedrive-folder-location-windows-10-0</a></p><p&gt; </p><p>Above links came up first with a search. <a href="https://www.zdnet.com/blog/bott/&quot; target="_blank">Ed Bott</a> often has great articles on things like this too. I trust his instruction more than others.</p>