Today I unplugged my laptop and immediately noticed it going automatically into battery saver mode. I thought to myself: 'That's odd I did not turn it on'. So I went into the settings and tried to turn it off but it would not let me! Than I reset the power settings but nothing changed than I uninstalled my battery drivers and rebooted the laptop. Still no change.
Than an idea came into my mind....
Can it be the Windows Update from yesterday? So I unistalled the last one and boom! Problem solved! Immediately changed my internet connection to one with a data limit so that Windows won't try to reinstall it again.