If you see boxes instead of characters, the Power Geez fonts are not installed properly. Re-run the installer and select "Repair" or reinstall the fonts manually from the installation folder.
Are you planning to use it for (Unicode) or older desktop publishing software (Legacy fonts)? Free Download Power Geez 2017 Software Setup
It supports phonetic typing (where typing English letters produces phonetically similar Amharic characters) as well as the traditional typewriter layout. If you see boxes instead of characters, the
Right-click the executable file and select to prevent permission errors. Free Download Power Geez 2017 Software Setup
Once the is complete, you need to enable it in Windows: