unlock bios,reset cmos password. Gateway Lt4008u laptop

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toddwhitted

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Dec 30, 2012
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directly after power on screen says"gateway" and "press f2 to go to set up"
when i press f2 it asks for a password that i do not know.
if i wait a second it says " an operating system was not found"
conventional cmos reset techniques don't work -soldered in batt/no dip switch/no jumpers/ or bumps
problem all started after i tried unsuccessfully to upgrade to Win 10 from 7 and blue screen came up directly after boot
from win 10 safe mode i tried to "reset this pc" where it apparently it removed everything
i tried default passwords { a few} no luck
 
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