How to fix Stop code: INACCESSIBLE_BOOT_DEVICE and how to fix “PC couldn’t boot properly”

[Microsoft Windows]

I was in my BIOS and pressed F9 to reset settings to default optimisation. After than I’ve been getting the Stop code: INACCESSIBLE_BOOT_DEVICE and I’ve been getting “PC couldn’t boot properly”. I chucked my PC into safe mode and got Stop code: INACCESSIBLE_BOOT_DEVICEI have no idea if I just need to wait a couple days or if I need to get it repaired or is there a way to repair it myself?What was I doing in the BIOS looking for a setting to help my gaming experience, did I find it no.

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