It's not totally clear exactly what's happened on your machine but this is what you need to do to completely remove Awasu from your PC so you can re-install it clean.
(*) Open a Windows Explorer window, go to the Awasu installation directory and run <tt>ResetUi.exe</tt>.
(*) From the Start Menu (or Control Panel, Add/Remove Programs), run the Awasu un-installer.
(*) Remove the Awasu installation directory (by default, <tt>C:\Program Files\Awasu</tt>).
(*) Since you've run 2.3, you also need to remove the <i>local data</i> amd <i>roaming data</i> directories. The location of these depends on which version of Windows you are running but you can find out here
(make sure you read the footnotes).