Sometime back I got a cmos checksom error so I tried changing battery,but even after trying with 3 battery the problem persists. Even tried to reset bios , both by loading defaults and via jumper on mobo nothing works bios doesnt retain settings.
As a last resort I wanted to update bios if at all its corrupted.
I made a free dos usb (rufus,yume,hp format tool,Unbootin,etc ) nothing works after booting into dos the command line says A: drive which i cant change to C: or any other drive gives me error drive not found if i try to " cd C:" it says C drive not responding.
I tried same bootable usb on my laptop and it changes drive to C: (usb drive) where bios flash files are located.
Please help me what am i doing wrong here?