When trying to install Office, you might get one of these errors. We’ve listed the most commons solutions first, so try them in order.
Option 1 - Restart your device and try installing Office again
In your browser, bookmark this article so you can easily return to it since you'll have to restart the computer you're trying to install Office on.
Save your work and close any programs you have open, and then restart your computer.
Once your computer restarts, open a web browser such as Internet Explorer, and sign in with the account associated with Office, and then select Install.
To reinstall Office, follow the steps in Download and install or reinstall Office on your PC or Mac.
Option 2 - Use the offline installer to install Office
The Office offline installer may help bypass potential proxy, firewall, antivirus, or Internet connection issues that might occur during an Office 2016 installation.
For steps to install an offline version of Office 2016, see Use the Office 2016 offline installer and select the correct tab for your version of Office.