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HP Pavilion - 15t-cs300 CTO
Microsoft Windows 10 (64-bit)

My laptop was working fine, when it suddenly turned off.  I turned it back on, and I get a black screen that says "Boot Device Not Found.  Please install an operating system on your hard disk (3F0)."  I restarted multiple times, but it's always the same error.  I used F2 to run the full set of hardware diagnostic tests, and everything passed.

 

I'm working through the steps here: (https://support.hp.com/us-en/document/ish_3053911-2842957-16).  I finished step 1 with no effect, and step 2 doesn't work, I don't have the "Firmware management" option or anything similar in my bios startup menu, only the option to run component tests.  I inserted the flash drive with the bios update on it anyway, but the laptop didn't seem to recognize it.  Are there any other steps I can try before reinstalling the OS?

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