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#11
@ImLost
I have checked the manual for your lenovo Ideapad 330S https://download.lenovo.com/consumer...Info:UserGuide
There are two ways to get to the boot menu that lets you choose what to boot from. The first is to press F12 as soon as you turn on the PC.
The second is to turn the PC off, insert the usb, then press the Novo button. This is in a small hole in the side of the PC, on the right hand side according to the manual. You'll need a paperclip to press it. Once you do, the PC will power up and go straight to the menu giving you a choice of 'normal startup', 'BIOS setup', 'Boot menu', and 'System Recovery'. Choose 'Boot Menu'.
After getting to the Boot Menu by F12 or the Novo button you should see the usb listed, select it and you'll boot from the usb.