How to Download, Install, and Activate Microsoft Office 2021 Professional Plus?
Step 1: Download >
In some cases you might receive a security message by your browser when trying to download the file (depending on your security settings). You can accept the message without any concerns, because it's a direct link to Microsoft's Content Delivery Network (officecdn.microsoft.com).
Step 2: Installation
Normally, Windows 10 or 11 automatically opens the file when double-clicked. However, in rare cases, particularly when other programs (like DVD software) are linked with those file types, issues can arise. If this happens, right-click the file, select Mount, and a new drive will appear under This PC in Windows Explorer. Access this drive to begin installation. This process is known as image mounting, similar to inserting a DVD.
Step 3: Activation
Important: If your PC came with a preinstalled version of Microsoft 365, please uninstall it in order to use Microsoft Office 2021 Professional Plus. Otherwise there will be a conflict between both versions.