If Microsoft Word and PowerPoint don’t recognize fonts styles other than bold or italic even if other styles are installed, there is a hack.
I found the perfect font to use for titles in a presentation, Raleway Semi-bold. I installed it and when I went back to PowerPoint, I had two options: bold and italic. So, where’s semi-bold? A quick search found that it’s a MS-Office problem. A hack around it was to remove all other variations of the bold font, except for the semi-bold. This would be great unless I wanted to use the actual bold font. My solution was to rename the Semi-Bold Raleway font and install it as a “new” font.