Microsoft Web Platform Installer frozen while installing MySQL

I am trying to install Wordpress using Microsoft's web platform installer. I went to the Microsoft website and downloaded the installer, and it walked me through the installation. I was prompted to set a MySQL password and it then started installing MySQL itself and froze. It shows download progress at 100% but this progress bar has been going for about an hour now.

As you can see, there is not really any activity coming from the installer. Sorry for my sloppy mouse drawing. How can I fix this?

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