I downloaded it from Software Informer, but there's an error when I install it.
I've downloaded the installation package through the application's page at Software Informer and installed it on a Windows 10 64bit and everything worked normally. I've installed it using Run as Administrator. I've also followed the installation instructions and then used the first lesson and it worked.
Here is proof that it works: http://image.prntscr.com/image/85380f7993684eb986a5552598b62e19.png
If the problem persists, download the software from the official website: http://www.typingmaster.com/typing-tutor/free-download.html Ask for the instructions the actual developers at http://www.typingmaster.com/contact.html