Hi,
I would recommend trying to perform an uninstallation using Revo Uninstaller. It is likely that Windows Security blocked the installer; however, with Revo, you can uninstall the program even if the standard uninstaller is disabled or not working. Select the "scan" option—it will check for remaining files and registry entries—then select everything found, delete it, and proceed.
You should only do this if the Q&A Assist procedure did not work.
Please let me know whether or not it was successful. In any case, Smart App Control has already blocked the file, which is what prevented it from working.
Thanks