I tried installing Ubuntu 14.04 as a dual boot with my Acer laptop which already had windows 8.1 pre installed. But when I finished installing Ubuntu, my Windows is gone which is no more now.
I need to factory reset my laptop to get Windows OS back. But when I try to reset it by pressing AltF10 I'm prompted with some options like boot Ubuntu and memory test options were there.
Can anyone please guide me on how to restore my Windows 8.1 back? Is this is possible? Thanks in advance