boot - My friend installed Ubuntu and I can't uninstall it or get into the BIOS anymore - Ask Ubuntu


my friend , built pc out of old parts had laying around in house , got in running. first thing did install ubuntu on it. although ubuntu fun mess around , more secure , useful windows, wanted windows can play games. went on laptop , installed iso version of windows onto usb flash drive rufus , plugged pc. went through boot sequence , saw did not detect bootable drives. believe how friend installed ubuntu before not sure. restarted pc , tried going bios pressing delete on , on again didn't work. couldn't bios anymore. how can uninstall ubuntu , pc running windows again?

here random things couldn't fit in formally paragraph:

the last time in bios gave me message telling me overclocking causing problems.

i running ubuntu 16.10 (upgraded 16.4).

my hard drive brand new.

your computer's uefi or bios stored on motherboard, , first thing computer runs before can operating system. nothing in regards having (or not having) operating system installed on computer affect that. every manufacturer triggers uefi/bios setting screen in different way, though, you'll need check manual motherboard more information. (try searching make , model number on google.)

you don't uninstall operating systems, delete them. if ever installing new operating system , not want existing operating system , data on computer, install new operating system , tell installer use entire disk.


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