A:AnswerIf you ware purchasing warranty from Best Buy for this system they will usually ask you when checking out. As for the system itself it comes with a 1 year Manufacturer warranty, so if any issues arise you can contact the number on the box that the system comes in for any technical assistance you may require.
A:AnswerId recommend using windows recovery software it can fix windows and registry problems without losing all your information but many things can cause this issue also check connections ventilation power consumption ect overheating and improperly overlooking can cause this issue as well
A:AnswerI can't truthfully answer this question as i do not play leathal company but id adjust the graphics settings either in game or in the Graphics control panel
A:AnswerAs the community answer states unplug the system from your wall outlet, but I would also recommend hitting the power button a few times in order to power cycle the system. After about 10 seconds plug your system back into the outlet and see if that works. If you are still having issues powering your system after that please contact the customer support number on the box for a more through diagnosis.