Re Grrrrrrrr
To really enjoy your self, try altering the battery power conservation settings - Make your carefully considered changes e.g. prevent it shutting off yor hard disk every 20 minutes (reducing its working life) Save and re boot. !!
Result Arrgh yep a whole new set of changed that Windows 8.1 thinks you were trying to make.
Commiserations from a Fellow Windoze User
CAT III