OneDrive- Setup File Syncing
How to Turn on OneDrive's Background Syncing for Desktop and Documents
- Select the OneDrive cloud icon in your notification area (might need to click ^ first, near date/time in lower right).
- Select the OneDrive Settings icon, then Settings.
- Go to the Sync and backup tab.
- Then select Manage backup.
- Turn on the toggle for a specific folder if you want to turn backup.
- Options are usually Desktop and Documents, sometimes Pictures too.
- Select Save changes.
Also, if the OneDrive icon is not visible somewhere near date/time in lower right, or there's a grayed out cloud, just search for it in the search bar at the bottom of your screen. Then open OneDrive, then do the steps above.