Laptop botting from formatted external HDD instead of built in SSD

[IcarusT2]

I recently formatted an external HDD to my computer since regularly plugging it in wasn't making it appear. After formatting it worked fine, until I closed the lid. After coming back about 2 hours later I was greeted with a 3f0 error. I checked the optane thing in BIOS and it says my SSD is disabled. Don't know what to do please help this is excruciating. 

[WAWood]

@IcarusT2 

From your description, it sounds like your laptop is trying to boot from the external drive -- and that will not work.

You have to leave the drive disconnected when you reboot and reconnect it after that is done.

[IcarusT2 · Accepted solution]

I had already tried booting it without the HDD plugged in. I figured it out myself. My BIOS was corrupted and wasn't reading any of the drives at all. Found that out by holding Windows + B. Told me it was corrupted but I couldn't fix it since the UEFI was also not up to date. Ended up needing to sideboot windows on a hard drive and then updated the UEFI and fixed the BIOS. Problem solved after that.