If you use Windows XP or below you can go to Start > Control Panel > Add or Remove Programs. In the Currently installed programs box, select Quick Fire Pool and then click Remove.
If you have Windows Vista or above you need to go to Start > Control Panel > Programs > Programs and Features. Select the Quick Fire Pool game and click on Uninstall.
After that, download a new installation package and reinstall the game. This should fix it. Also, you need to know that the game is not compatible with the latest Windows versions. It can run only on Windows XP and below. If you still have issues, you can try a similar game from Software Informer database.