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Question Minecraft Java crashes PC on launch

Jul 16, 2020
Yesterday I built my first PC ever; everything went super smoothly and I ended the day with playing Doom Eternal with no issues. Today I downloaded both Witcher 3 and Minecraft Java. Witcher 3 runs perfectly well, high to ultra graphics at 1440p but whenever I click launch in the Minecraft Launcher, my PC just shuts down, no warning just bam, dead. I can turn it on again and carry on using it but is there something I am doing wrong?
I am running Windows 10 all updated, I have the latest version of every driver I need and the latest version of Java.