I perhaps foolishly ran MSI Live Update 5 under Windows 7 and allowed it to auto update all my drivers, including my BIOS. It shut down once during this process and when it attempted to start up again I got a Windows cannot start message. Startup recovery and startup repair do not work. What is going on here and what can I try? Thanks!
Check UEFI and see if your SATA protocols are set to IDE, i flashed BIOS and it defaulted the BIOS to look for AHCI, despite leaving the legacy support on.
I flipped them (i have two HDD'd) back to IDE and voila, all is well.
My fix is for a Z77A-GD65.