Although PCs have steadily grown more energy efficient over the last few years, there's still room for improvement. We tried to find out how you can make a Haswell system as efficient as possible. We first tried using different components, then attempted tweaking various (BIOS) settings, and finally tried undervolting.
There is a lot of free Microsoft software to be had, programs which enable better web surfing and help protect against spyware are just two types. PCSTATS Tips