Microsoft Office Pro Plus 2016 – Online activation — installation

Step 1: Download Office

Download the installer using the official Microsoft link:

https://officecdn.microsoft.com/db/492350F6-3A01-4F97-B9C0-C7C6DDF67D60/media/en-US/ProPlusRetail.img

The file downloads as an .img file — double-click to open it, then run Setup.exe

Follow the on-screen prompts and complete the installation

Step 2: Enter Your Product Key Directly in Office

Open any Office app (Word, Excel, PowerPoint, etc.), click File > Account, then under Product Information click Change Product Key or Activate Product

Enter your 25-character product key carefully without extra spaces, then click Continue