Issues booting after updating BIOS

I recently updated my Alienware Aurora R4 to Windows 10, which I am happy with, but I noticed that my fans were reallt loud during startup and shutdown, and I had to reset them manually in my Alienware Command Center application which was irritating, so after minimal research I saw that one of the suggested fixed was updating BIOS, which I foolishly thought would be a quick easy thing to try, so I updated from BIOS version A7 to A11 because I was unaware of flashing, which I realize now I definitely should've done. Anyway, the update seemed to work fine, no freezes or crashes, and I just restarted my computer and shutdown was normal. When it started up again though, instead of booting properly, it showed a windows 10 screen that said "your computer ran into a problem and needs to restart" with an error that said INACCESSIBLE_BOOT_DEVICE. So when it had restarted, I went into my BIOS settings and made sure my that the first boot device was "hard disk" (I do have two drives, an SSD and a HDD, but they've never caused me problems before and nothing was fixed when I took out the HDD without windows on it). So far I've restarted a bunch of times and tried everything I can think of. Any help would be appreciated! Thanks