Hello, I have bought an Lenovo IdeaPad 3, but it didn't come with Windows. I wanted to install Windows 10 on him, but i don't have any bootable flash drive with Windows 10, but i do have one with Windows 7. So i tried to install Windows 7 on the laptop. The problem is the installation freezes on "Starting Windows" screen. The Flash Drive is USB 2.0 and i only have 3.0 and 3.1 ports on the laptop, but, as i know, usb 3.0 is backward compatible. I entered in BIOS and i changed it to boot in Legacy mode beacause in UEFI mode the flash drive doesn't show up in boot menu. Pls help me.