xBioHazardx

Sorry if this has been posted before. I'm installing Painkiller Gold Edition. I need Direct X 9.0c. When I tried to install it, it said that "Cabinet file needed for installation cannot be trusted" How do I install Direct X 9.0c **I did some searching on here, and when I tried to switch the Driver Signing form Warn to Ignore, it wouldn't stay at ignore, but in fact go back to warn.** Thanks for the help.