How to make sure the OneDrive process is running?

Step1: To verify that OneDrive is running, look for the OneDrive icon on the right side of the menu bar. Or, you can check from Activity Monitor:

Step2: Open Activity Monitor from the Utilities folder in your Applications folder or use Spotlight to find it.

Step3: Choose the CPU tab, then look under the Process Column for OneDrive.

Step4: If OneDrive is not running, use Finder or Spotlight to start OneDrive.