Use your Microsoft account through for everything you want to with Microsoft 365. Create an account or use the account of services such as OneDrive, Skype, Outlook, or Xbox Live. Use the site to download and install Microsoft 365 setup that will allow you to use multiple apps like Word, Excel, OneNote, PowerPoint, or more.
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Microsoft365.com/setup:
Go to Microsoft365.com/setup, Microsoft 365 Setup website.
Sign In to your Office Account or Create a New One.
Now Enter Product Key.
Click Install Office Button.
Go ahead and Click Install Office Again.
Save and Run office setup.
Wait for Office to finish Installation.