Powerpoint is too painful to use for presentations, and the results tend to be of poor quality. The solution is to use LaTeX Beamer, which is included with all modern TeX distributions (I recommend TeXLive).
There does not seem to be an official University of Wisconsin template, so here is a first stab at something that works.
This template positions some UW logos at reasonable locations and generally tries to stay out of the way. It is based on one of the official themes (Berlin, if I recall).
The name of the theme is Wisconsin. This theme currently has two options:
The repository is available via GitHub.