Now we will command the tool to download the heavy installation files from Microsoft’s servers.

Having a 3GB offline installer on a USB stick is like having a spare tire in your trunk. You might not use it for months, but when your internet goes down on a Monday morning and you have a report due at 9 AM, that USB stick is a life saver.

Avoid installation failures caused by timed-out connections or low speeds.

The installer will now begin copying files to your hard drive. Since it doesn't need to download anything, you should see the progress bar move steadily.

If you are an IT admin or a power user who wants total control (and doesn't mind using a command line), Microsoft offers the . This allows you to download the exact bits for specific apps (e.g., just Word, Excel, and Teams, no Publisher or Access).

While there are third-party websites that host unofficial Office ISO files, Microsoft strongly advises against using them due to security risks and malware. Using the official Office Deployment Tool guarantees you have a clean, virus-free, and up-to-date installer.