Step1: If you don’t have Windows 10, Microsoft 365, or Office 2016, install the new OneDrive sync app for Windows. If you use the latest software, you already have the OneDrive sync app and you can skip to step 2.
Step2: Select the Start button, search for OneDrive, and then open it.
Step3: When OneDrive Setup starts, enter your Microsoft account, and then select Sign in.