So - I backed up some essentials and wiped everything using the "Reset this PC" tool. I chose to remove all personal files and folders as well as cleaning drives completely. I then followed Greg's guide at https://answers.microsoft.com/en-us/windows/forum/windows\_10-performance/windows-10-performance-and-install-integrity/75529fd4-fac7-4653-893a-dd8cd4b4db00 and encountered no issues whatsoever. My installation appears to be problem-free.
Despite all updates being installed, all drivers I could think of being good to go and a seemingly healthy installation of Windows, I CANNOT install my sound driver and the pc simply will not let it run. Even if I manually install the audio console app it fails to install with an unknown error. And it certainly doesn't work without it (still code 10 device cannot start for my realtek driver). Is my board defective? Because at this point it seems like it's just incapable of working and is physically broken despite being a fairly new pc build (less than 2 years old).