Try disabling DEP
1. Open the Start screen, right click the Computer tile and click Properties in the bar below.
2. In the System Settings, click Advanced system settings in the left pane, go to the Advanced tab and click Settings in the Performance section. Next in the Performance Options window, go to the Data Execution Prevention tab and select Turn on DEP for essential Windows programs and services only.
3. Finally click OK in both windows to save the configuration change and restart your computer to apply it.
Also it is possible that some EMET or STIG security restrictions block KSS execution.