Hi markymark,
Welcome to Sony Community!
We're sorry to hear about what happened to your laptop. Kindly follow the troubleshooting steps found in this link, https://us.en.kb.sony.com/app/answers/detail/a_id/32876/p/48903,49902,71629,71653/c/65,66/kw/laptop%20shuts%20down%20. I hope it helps.
Regards,
Jen
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