well 1 way u can reformat ur pc or u can go 2 my computer go 2 local disk and open it u i dont know wat u have ur casinos under but it could be under programs or casinos just click on them and search 4 that certain casino recycle them dont 4 get 2 empty ur recycle bin after and make sure u go 2 add or remove programs and uninstall it . then after that make sure theres no other programs related 2 that casino and restart ur pc and download again u can try doing this ...