so I brought my son a 2nd hand gaming pc for Christmas for him to play minecraft on he's only 9 so 1st pc. iv had no issues with it plays Minecraft no problem. for his 9th Birthday he asked for hello neighbour which we purchased and downloaded but it keeps switching the computer off everytime he starts to play he gets a little bit further then before and it stays on a bit longer everytime time but inevitably switches off. so thought we'd experiment and download some other free games we downloaded 3 free games 2 do the same thing switch the computer off and 1 works fine. please help I don't understand why and what we need to do to correct this. many thanks