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lady to this video I'm going to show you how to end about the USB booting on their own evil t520 big bad great power on then I'll tap F drove that I got the boot option menu and this is what it's showing it's not giving me the options of the USB and this is connected then I'm going to switch off the PC wait long press goes off then I'll press Start again then f1 or tap till hear a beep then I wait for the bus in here on this step you're going to click the arrow button then yes B panel enable this first option here test disabled and press escape then another option under startup here we have the the legal boot so this has to be in both if it is in lico only 10 20 don't accept for you to install other windows apart from windows 7 then I'll leave it on both it has to be Anna but then I'll press f10 then click enter then I'll double tap F drove what I go in the boot menu wait for it to load