When you set Windows 8 up you were given the choice whether you wanted to allow applications to read your locality or not. If you made up your mind towards the choice you have taken you can still change that
Change to classic skin when unplugging notebook from power source in Windows
Windows 7 comes with the Aero skin by default which might look nice but consumes a great deal of resources - and with them, power. I have experienced a loss of up to two hours of battery life on my