Click the blue OneDrive cloud icon located on the left side of your taskbar. It may also be found in the system tray.
Click the gear icon in the upper right corner of the popup box, then select “Settings.”
In the left pane, navigate to “Account” and click “Stop sync” on the SharePoint you no longer wish to sync.
To sync or unsync a specific folder, click on “Choose folders” and then set or remove the checkmark next to the folders in the file directory.