I am trying to install Windows 8.1 in a computer with Windows 7 Ultimate. I created the usb bootable... I went thru the bios and realized I have not usb boot option. Checking in forums I found I can go to the option HDD groups and inside should be showing my pendrive. It was. I selected the option with my pendrive name, save the changes, exit and when I am booting again appears constantly booting from the hard disk and not from the usb pendrive.
What can I do?
What can I do?