Or you could just open the Start Menu, type power button and hit enter.You can adjust what the power button should do if it is pressed (Energy Options -> Change plan settings -> Change advanced power settings -> Power buttons and lid -> there you go), I suppose in your configuration it's set to "do nothing".
Just because you have troubles it does not mean everyone will. I use Windows 7 on my MacBook Pro quite often without any issues, can read the OS X partition under Windows and the other way around too.It good but don't run it with bootcamp... It crashes when I try to read the mac partition. And yes it still gets viruses