The keys used to lock the keyboard….? A) CTRL + Tab B) CTRL 4 + Alt C) Windows logo + L D) Windows logo + K Related MCQs: The keys used to lock the keyboard is …..? The keys on the top of keyboard as F1, F2………F12 are known as? A standard enhanced keyboard has …….. keys? In MS Word 2007, to extend a selection to the end of a word, press …. keys from keyboard?