Basic Questions on Installing Windows 7

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1. It was a usb 2.0 port
2. How do I ensure that?

1. You can complete all installation steps on a legacy BIOS-based computer.
2. For backwards compatibility, most of the UEFI-based computers also support booting in legacy BIOS mode from MBR-partitioned disks, through the Compatibility Support Module (CSM) which provides legacy BIOS compatibility. So if you want to complete all installation steps on a UEFI-based computer, please make sure that your computer supports CSM and then complete all installation steps in CSM mode.