Download the self-extracting executable file to your computer.

Open your configuration.xml file in Notepad and double-check your syntax. Ensure that the paths, file names, product IDs, and quotation marks match the required format exactly. Missing characters or misspelled product names will cause the deployment engine to stop immediately. Error: "Couldn't install - check your network connection"

When you click "Install" from your Microsoft account dashboard, a small bootstrapper (~5MB) downloads. When you run it, it connects to Microsoft’s Content Delivery Network (CDN) and downloads bits of Office in the background while simultaneously installing them. If your internet cuts out for one second, the installation fails. If you have a slow connection, a 30-minute install turns into three hours.