Today i received an email from user that how can i shutdown my laptop if unplugged and installed Windows 7. Microsoft Windows 7 comes with lot of power management features and you can customize it according to your requirements. So here is the method to shutdown your laptop if you lose the AC power and laptop is on battery.
Type “Power Options” in Start Menu search text field and hit enter key.
Click on “Change Plan Settings” in front of active plan (Balanced, High Performance or Power Saver).
Click on “Change advanced power settings”.
In the next window scroll down and find the “Battery” option, Expand it.
Expand “Low battery Level” and change the “on battery” value to whatever you want.
Expand the “Low battery action” and change the “on battery” option to Shutdown.