Question: Since there's no longer a taskbar/start menu Control Panel, how do you clear the history of the Run box in Windows 8?

Answer: 
Empty the registry key out:

```
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths]

```

This will kill the typed Run history.
For some reason the run box history is cleared via clearing Internet Explorer history. In IE, press ctrl+shift+del, and clear your history.