Can we change msconfig - Load Basic Driver Settings to Load All by editing system file?

I've HP g6-1209AX. My keyboard & track pad stopped working abruptly. I restarted the computer couple of times but nothing happened. I was able to login using my pin by using On-screen keyboard. So, further, I decided to go to msconfig and try booting with just basic drivers (load basic drivers).

After that, neither I/O devices are working nor I'm able to login. When I enter my pin, it reloads the login screen and asks me to re-enter the pin. It threw Loginui.exe error couple of times (not any more).

As an ultimate solution, I decided to format my systems so I booted it from USB with Windows 8.1 however, when it asks me Press any key to boot from USB it doesn't accept inputs from my exteal - usb keyboard. I don't have any legacy options to enable in my boot by the way.

I would appreciate if anyone can help me out. One solution I see is reverting msconfig settings from a system file by attaching this hard drive to other system.

Recent Questions...