Installing fonts in Windows 8 is easy. All you need is a file containing the font you want to install. These are often .ttf files. Make sure you have it some place handy, like the desktop, before proceeding.
From the Metro Interface, type the word fonts. You’ll get a few results under Settings – select Fonts.
Now locate your font file.
Drag the font file into the Fonts folder.
Done! This was more difficult in earlier versions of Windows, but here it’s a breeze. If you receive a message about the font already being installed, it means one of two things – you already have that font installed or you have another version of that font installed. In either case, it’s best to back off and see what’s really going on with your fonts before you overwrite what is already installed.