Use the official link provided with your purchase or via the Microsoft setup portal.
Maximizing Productivity: A Guide to Microsoft Office 2021 ProPlus Online Installation Microsoft Office 2021 ProPlus - Online Installe...
Double-click the .exe file. The "Stay Online" window will appear. Because this is an online installer, a stable internet connection is required throughout the process. Use the official link provided with your purchase
Ensure you are running Windows 10 or Windows 11 . Office 2021 is not compatible with older versions of Windows. Because this is an online installer, a stable
Unlike subscription models, ProPlus 2021 is a perpetual license. You pay once and own the classic 2021 versions of . It’s ideal for users who prefer local installations and don't require the cloud-heavy features of the 365 suite. The Power of the Online Installer
Once the progress bar finishes, open any app (like Word). You will be prompted to sign in with your Microsoft account or enter your 25-character product key . Pro-Tip: Use the Office Deployment Tool (ODT)
Usually caused by a firewall or antivirus blocking the connection. Temporarily disable them and restart the installer.