Office activation with Microsoft Account on Windows [See videos Below]
Open any Microsoft Office application on your Windows PC. You can activate Office from Microsoft Word, PowerPoint, Excel, or any other product from the suite. You’ll find your Office apps in a folder called Microsoft Office (version) in the Start menu.
If you don’t have Microsoft Office installed on your computer, you can get it at https://www.office.com. Just sign in with the account you used to purchase Office, click Install Office near the top-right corner to download the installer, and then double-click the installer in your Downloads folder to run it.
If you see a window titled “Microsoft Office Activation Wizard,” select the option for “I want to activate the software over the Internet. (recommended),” click Next, and then follow the on-screen instructions to activate.
Note: If you have exceeded the number of installs you are allowed with your subscription, you may need to deactivate an installation on another computer.
Office Activation with Microsoft Account [step by step]