In Microsoft Word, you can edit templates, which means you won't have to start over from scratch. Launch Microsoft Word and open the template to edit by clicking the "Open" option on the File tab.

Microsoft Word Poster Templates. Instructions: To properly display the template, make sure Microsoft Word is set to view "Layout Mode" or "Print Layout." Refer to the Poster Templates Guide (pdf) for ...

In Word 2013, you're able to use a touchscreen to click a pushpin icon in the bottom-right corner of the template, which "pins" it for you to come back to much more easily than searching every time.