The Alt key is known as the Option key on Macs. The Option key lets you perform shortcuts, type non-English letter accents, ...
Before you begin, make sure it’s not a hardware issue by plugging in a USB keyboard and see if the Alt + Tab key combo is working. If it doesn’t work, then you can proceed with these software ...
(ALT GRaph key) A key on many international computer keyboards that is located where the right Alt key is normally found (right of the spacebar). When pressed along with a keyboard key, it enables ...