The first sign of a problem is something I can’t remember

Which of these would be the best way to start the Windows Memory Diagnostics in Windows 7?

A) Run from the Command Line recovery console

B) Launch from Control Panel / Administrative Tools

C) Enable the service in Windows Services

D) Reboot in Safe Mode

E) Install the diagnostics as an optional Windows feature

F) I don’t remember if I need memory diagnostics or not