What is Apple doing to fix the issue with older macbook pros that shut down randomly after installing Big Sur? I have a 2012 MacBook Pro 13 inch. Worked wonderfully. I received notification to instal Big Sur, and did that. Now my laptop shuts down randomly! I am a small business owner that relies on the laptop for inline lessons. I cannot have it shut down randomly in a lesson. Apple, what can you /i do to fix this? please help asap