Quick fix: Click on "More info" and select "Run anyway" thereafter.
Windows protected your PCWindows 8 has a new security feature as part of the Windows App Store for non-Microsoft developed applications: all applications that are not within the Windows App Store, or haven't received enough ratings yet, are classified as a potential security risk.
Consequently, when starting the installation of Liquid Notes on a Windows 8 machine, it can happen that an error message "Windows protected your PC" is being presented:
This is not an error, it is only Windows 8' new security feature wrongly classifying Liquid Notes as a result of not being in the Windows App Store.
In the error window presented above, please click on "More info" - this will present more information about the error, and replace the button "OK" with other buttons. From these new buttons please select "Run anyway" to continue the installation.
Solving this problem to continue the installation
As soon as you have clicked on "Run anyway", the installation will continue normally.