How to Install a New Font from the Web . If you can't find a font you like in the Microsoft Store, download fonts from the web and install those font files in Windows 10. Windows can use several types of font files, including the TrueType Font (TTF) and OpenType Font (OTF) file formats.
Use programs like Adobe Type Manager or Bitstream Font Navigator to browse fonts and create font groups. Expect to run into installation problems with 800-1000 or more installed fonts. Aim for 500 or fewer fonts. You can save a copy of a font before deleting it from the Windows Font folder.