How to: Create a template in PowerPoint.
Solution:
Open or create a presentation, make changes, and save the presentation as a presentation template.
1) Do one of the following:
2) Change the color scheme as desired.
3) Change the slide background as desired.
4) Make changes to the masters as desired:
5) Save the new presentation as a template:
a) Select the 'File' menu and select 'Save As...'. (The File Save dialog box appears.)
b) Select the folder in which to save the presentation template from the 'Save in' list box.
c) Type the desired name for the template in the 'File name' box.
d) Select 'Presentation Templates (*.pot)' from the 'Save as type' drop-down list box.
Save as type
e) Click 'OK'.