I have recently bought Lenovo 51 - 70 laptop my problem is that i want to upgrade the windows 10 os but the problem is when i press f12 it usely go to bios but its not loading i have pressed several keys like f2 , f10 and f12 i could't find the nova key in the laptop which is located to in power source .please help me to resolve this problem it is very urgent me to upgrade windows 10
Regards
Visakh
Regards
Visakh