Re: Should I upgrade.
Try this procedure..
Click the select button on Rufus (not the drop-down arrow) and Windows File Explorer should open.
Go to where the Linux download ((ISO) is, select it and click 'Open' in the Window (or double-click the ISO file).
You should now see the ISO in Rufus's 'Device' bar and the 'Volume Label' bar.
The 'START' button should spring into life
Click it to start the format and creation of files on the USB stick.
The result is a Linux bootable USB stick that can be used to boot up the computer.
I'm not sure which F button you'd need to press on your computer for the boot menu to appear as it starts but on my laptop it's F9. When the Boot Menu is showing, choose the USB stick.