06-19-2016 06:47 PM
I used Rufus to create a bootable USB and insalled Ubuntu 16.04, after that it seems that Windows got a trojan (I couldn't start programs as admin, rufus itself could not be started and -internet Explorer was failing). It was necessary to restore Windows using the lenovo partition. Windows is fine now, but the option to start from an USB is gone from the BIOS, instead there are two options to start with Windows MBR (one of them is the one I re-configured to start Ubuntu, the other one goes directly into Windows), one for Ubuntu and another one for the net. I need to boot again from a USB (I need to install another Ubuntu), but I can't get the option back. How do I add it again to the BIOS menu?