The PC Guide forums do not "refer" anyone to Cyberpower or any other commercial sites, our users do recommend certain component configurations upon request, and users sometimes refer people to sites for pricing examples or compatibility reference engines.
BIOS is a system that starts the boot up process:
You can access the BIOS by pressing F2 or other specified key shown as Setup during the boot process.
You should run an antivirus program, maybe an antispyware program, and a software firewall program if you do not already run a hardware firewall included in most home routers.
I will let the gamers explain how to set up the PC for specific games.
I moved the thread to a more appropriate forum.