Supermicro Supero C7Q270-CB-ML User Manual page 95

Chapter 4: AMI BIOS
Install Windows 7 USB Support
Enable this feature to use the USB keyboard and mouse during
the Windows 7 installation, since the native XHCI driver support is
unavailable. Use a SATA optical drive as a USB drive, and USB CD/
DVD drives are not supported. Disable this feature after the XHCI
driver has been installed in Windows. The options are Disabled and
Enabled.
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