Subscription-based Office 365 and M365 products must be activated within 6 Months (180 days) from the time of Windows activation. Microsoft Office Product Activation and Product Life-Cycle Policies More information about the requirement is available at. Microsoft Office 2019, 2021 or 365 cannot activate without a valid Microsoft Account. If you do not have a Microsoft Account, go to Microsoft's support site to create an account. This makes it simple to reinstall Office without a product key. If Windows is not activated, click Troubleshoot and follow the prompts.Ī Microsoft account is required to access and save settings for Microsoft devices and services. This page indicates whether Windows is activated. Select Update & Security, and then select Activation.To check the activation status in Windows 10 or 11, select the Start button. Microsoft Windows 10 or 11 must be activated before you can redeem and activate Microsoft Office 2019, 2021, or 365. If your computer shows connectivity issues, use the Windows Network Troubleshooter to correct the problem. To redeem and activate Microsoft Office that is installed on your computer, you need an active Internet connection. However, the steps in this video are applicable for Office Activation on Windows 11 as well. Note: This video makes use of Windows 10 to walk you through the Activation process.