A family of Microsoft word processing software products for creating web, email, and print documents.
You appear to be using a "2 pages per sheet" setting in your printer Properties. To get the effect you want, you need to set the orientation to Landscape.
Instead of using the printer setting, you can do this directly in Word, which doesn't require you to change the printer settings to print a given document since the setting is part of the document layout. On the margins tab of Page Setup, for "Multiple pages," select "2 pages per sheet" and change the orientation to Landscape. Word will then give you a single page that is half a sheet. You can format it just the same as you would any other page, and you don't have to duplicate it on page 2; just print pages 1,1 (this may also be the solution to part of your problem with the printer settings if you created a single page and were expecting to get it duplicated).