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Unfortunatly i have acer aspire v5 471p , and want to change window 8.1 to win10 No Access to ACER ASPIRE V5 471p Bios But there is no BOOT menu option or setup option , I have tried f2,f8, f10 and f12 neither have worked. No key is workinG to booT it, plz help me .

Hi, To access BIOS in Win 8.1(or Win 10) turn off fast startup mode then shutdown the laptop, (do not select restart this one time). On starting again you should be able to access BIOS in the normal manner. Here is a link which shows you how http://ccm.net/faq/31793-windows-8-1-how

Hi, Have you tried this? http://acer-au.custhelp.com/app/answers/

No . Still it is not working

Go to the system BIOS via the advanced startup and change the boot priority order putting usb at the top and change boot type to Legacy then reboot and press F12 and run dban or windows 10 or whatever