Like previous versions of Windows, File Explorer has a space-wasting OneDrive icon in the left sidebar. If you donât use OneDrive, you can remove this icon with a simple registry tweak. Weâve detailed how to do this in Windows 8, but the registry key has changed in 10, so here are the new instructions.ike previous versions of Windows, File Explorer has a space-wasting OneDrive icon in the left sidebar. If you donât use OneDrive, you can remove this icon with a simple registry tweak. Weâve detailed how to do this in Windows 8, but the registry key has changed in 10, so here are the new instructions.