Yesterday Night I just watched some videos on YouTube and shut the laptop down.On next day when I tried to turn on the laptop it shows the acer logo then it blinks with a message on top left on screen says 'reset system' then the laptop again restarts with the same thing and this continues like a bootloop. I can only turn the laptop on and off with power switch and enter bios with f2 key but I can't Boot into usb through f12 key. When I go to bios I can only change password,date and time but nothing else like boot priority , disabling secure boot and else.
[Edited the thread to add issue detail]