Change which programs Windows uses by default
A default program is the program that Windows uses when you open a particular type of file, such as a music file, an image, or a webpage. For example, if you have more than one web browser installed on your computer, you can choose one of them to be the default browser.
Open Default Programs by clicking the Start button, and then clicking Default Programs.
In Default Programs, you can:
Set your default programs. Use this option to choose which programs you want Windows to use by default. If you want to use your Windows Live Photo Gallery,Photo Gallery,or Photo Viewer to open all photos, use this option.
Right click on any of the images, open properties, click Change.
2. In ‘Open with’ window, open Other Programs and select Windows Photo Viewer as default program to open with.
3. Click Ok, all your images will open in Windows default photo viewer.