JasonWijesuriya wrote:
Thanks for the reply.
How could the settings have gotten messed up? All I did was update BIOS using the EZ flash thing by ASUS. It installed, rebooted, and brought me back to BIOS but this time with none of my drives showing up!
I'm not saying you're wrong. I'm trying to figure out which step I made was the wrong one, so I can not do it again in the future.
because, it shouldn't be possible that you could boot onto your windows now using CSM (compatibility support module) if you were booting it with UEFI mode on your previous version of bios. it's logically impossible. that led me to think on your earlier bios, you were still running it on CSM mode (just that you didn't realize it yet).
one important thing to take note of: Bios updates do not, should not, will not (correct me if i'm wrong, but in this case I doubt it), change a boot drive's Master Boot Record, magically transform a basic partition into GTP bootable UEFI partition style, and/ or even edit anything inside your drives.
Bios update should only touch what's in your Flash chips, perhaps modifying it with preconfigured (from the factory) settings, and writing itself to flash chip.
with the available information at hand, that led me to think that you perhaps misremembered certain steps.
to fully diagnose what was right, requires you to:
- Load Bios Defaults, Laptop UEFI bios is mostly locked down, to prevent mis-settings.
- When you get into Windows (don't matter now whether Secure boot is on or off, CSM enabled or not, Full UEFI or Legacy), go into Disk management, and the first thing you should do is check whether the drive that Windows is on = GPT or MBR. then identify the very beginning of the partition. if it's MBR, then your Windows from the beginning was setup as legacy Boot.
no siggy, saw stuff that made me sad.