Office 2013 can automatically tell when there are updates available. When an update is ready, Office will tell you so that you can download and install it. This is a very simple process that can be accomplished with only a few clicks of the mouse.
Firstly, you will see an information balloon like this:
You can either click on the message to install the updates there and then, or you can ignore it until it disappears and download them later. If you ignore it, it will fade away after a few seconds, but you can retrieve it again from the system tray (click on the up arrow in the taskbar). Click on the Office Updates available icon to start the download.
Sometimes you will have one of the Office programs (Word, PowerPoint, Excel, etc.) open and Office 2013 will need to close it down. It will ask if this is OK by presenting this window:
Click Close Programs to close them down. Then Office can continue with the download. You’ll see the following window:
Once these programs have been closed, the download can get well on the way:
It shouldn’t take too long to download your Office updates, but obviously the time it takes will depend on how fast your internet connection is, and how big the updates are. As an example, I’ve just downloaded some updates and it took under five minutes. You can, of course, carry on working on something else while Office is updating, as long as you aren’t using an Office program.
Once the updates have been successfully downloaded and installed, an information balloon will be displayed telling you as much and then any Office programs you had open previously will start up again.