Help!!! I just installed bootcamp and realized that my shift key is stuck... Since I have High Sierra, I can't boot it back to mac OS... I am currently stuck in Windows 10! Is there a way to stop MacBook keyboard and use an external keyboard in Windows 10 during booting? Currently, I can't get onto any startup manager, verbose mode, single user mode, or anything... I could get on Internet recovery mode but that got me to the no entry sign thing. Thanks!