If you recently added a new hardware (e.g. a new RAM memory stick, hard disk drive, graphic card etc.) to your computer or replaced an old hardware component, remove it from the computer in order to check if that is the culprit that prevents your computer from turning on.
If the computer does turn on, either the new hardware component is broken or it is incompatible with other hardware components of your computer.
If you don’t receive the email in the next 2 minutes please check your junk folder, and add [email protected] to your safe sender list.