whenever i press control on keyboard my computer tart a new tab or if i am already using my browser then it brings me to home page it also sometimes mute my computer i also tried uninstalling my browser and i thought it is not a problem though i just opened chrome and the same started happening with it i reinstalled my browser same in between i mistakenly pressed windows key and another key and my pc turned off i thought that was a shortcut key but then i realised pressing win key turns my pc off i cant do anything i even tried opening HID but it was already set to manual and even after restarting it noting changed im using win 10 pro i also noticed an additional option in all my browsers which was to search tabs and it appeared now only from when this problem started pleae help