It is very likely you got hit by the hack. That's why the smart screen was trying really hard to stop you from running the installer. It wasn't an installer, it was a trojan.
Here's more info:
viewtopic.php?f=12&t=6441Be very careful what you do next. Make sure you have a Windows 10 disk. Follow the instructions in that post to repair your MBR.
After you have repaired your Windows, you can download the latest version of Classic Shell from the main page. Before you run it, verify that it has a valid digital signature.