I bought the laptop second hand, just as an Apple spare to our main Microsoft computers, for typical Apple media reasons and we have iphones and ipads. I don't have a system install disk. Is a blue screen proof of HD failure?
Well, the battery appears removable in that it is held in place with 2 Y screws. I have not removed it because I do not have the Y shape but I am sure I can if needed.
My mistake, it has a white screen with a folder with a question mark in it when switched on. I will try safe mode, but can you tell me what the Option key is? What is Command Option P R keys?