You won't lose files or data by disabling, uninstalling or unlinking OneDrive on your computer. You can always access your files by signing in to your OneDrive for Business account online.
Select the white or blue OneDrive cloud icon in the notification area, at the far right of the taskbar.
Note: You might need to click the Show hidden icons arrow next to the notification area to see the OneDrive icon, or click and start typing "select which icons" to display the notification area settings option, and then show Microsoft OneDrive. If the icon still doesn't appear in the notification area, OneDrive might not be running. Click , type OneDrive in the search box, and then click OneDrive (not "OneDrive for Business" as that may be an older version) in the search results.
Select More > Settings.
Click Unlink this PC.
Follow the steps in the Welcome to OneDrive wizard to set up OneDrive.