ok, i do not remember the bios screen instruction which appeared after an update but i ll provide u the details to let u help me...
When i got a message that bios has been successfully upgraded, system restarted on my command ( as needed )
but that restart was strange, my cpu suddenly shut down very rapidly with a kitich sound, then i got a message that now bios is updating ( even i got this message b4 when it was updated via usb ) anyhow my pc shut down and then restarted, then there was a black screen with a message that bios is updating, after that pc restarted 2 or 3 times, 2nd or 3rd time of its restart brought me a message that something is necessary to do in bios press f2, o pressed f2 but did not know what to do so i pressed DEFAULT SETTINGS, WHEN I QUIT it told me that "do u want to exit without saving " i agreed with that message and edit, after that pc took some time to start...and now my pc is sounding like over clocked...any how plz tell me what to do, if not sure then guide me to roll back this update. thx.