Uninstalling KoalaBrain
To uninstall KoalaBrain 1.2.4 and above, use the classic Control Panel to initiate the uninstall using the 'Programs and Features' Control Panel.
Click here for instructions on how to access the classic Control Panel on Windows 10
If you have KoalaBrain version less than 1.2.4, install 1.2.4 and then uninstall it using the above method to remove any stale entries in the Add/Remove Apps list in Windows.