Disconnection From The Power Source And Others
To properly disconnect a plug from an outlet you need to pull the plug from it's head not from the cable. The first thing you got to do is unplug the computer's power source from the outlet after that you have to unplug the computer's power plug from the back and the rest of the cables. I'm sure most of you have done these before, so it's no need to get into all the safety details and even if I would no one respects them not even me. The same procedure is done for the monitor and the other peripheral's. And if you want to take the case off all you have to do is unscrew the screws from the back and if you have an old PC case use a screwdriver.