Manually activate your Office 365 using KMS client key. 1. Open command prompt as admin. First, you need to open command prompt with admin rights, then follow the. instruction below step by step. Just copy/paste the commands and do not forget to hit. f Enter in order to execute them. 2. Navigate to your Office folder. 2) reinstall office 365 or Office 2019. From any of the office products click on the left arrow in the top left of the product, then click on “Office Account” Click on “Manage Account” to login to your Office 365 or Office 2019 account Once signed in, navigate to “software” Then click on “Install“. This will download a file that Enter the product key for activation through the internet without using account. I normally install office Downloaded office suite from ODT , I added Productkey included in the configuration file, after installation, I wont enter product key, office suite will be activated automatically. Step Two: Get Your Office Product Key. For discounted Microsoft products with Software Assurance, you'll get your key from the VLSC. For donated products or discounted products without Software Assurance, you'll get your key from the Microsoft 365 admin center. Follow the instructions that apply for the products you requested. Office LTSC 2021 is now available to volume licence customers. A similar product, Office 2021, will retail to individuals and small business. Do NOT buy Office LTSC if you have Microsoft 365 like Microsoft 365 Family (formerly Home), Microsoft 365 Personal or an enterprise plan. In other words, you pay for Office as an annual fee. I installed Office from the above link (Office 365 ProPlus), but I didn't have to activate with any key. Everything works great, am I missing something? I rebooted as well. Microsoft Office 365 Pro Plus is available free of charge to students registered for at least one credit in the current term at the University of Minnesota, and to Faculty and Staff currently employed by the University. Alumni, retired staff and faculty (including Professor Emeritus) are not eligible. aNSwINw.