usb keyboard mouse not working in windows 7 installation , before and after

Most likely because your hardware has usb3 which Win7 doesn't have native support for prior to installing. Need to inject usb3 driver into the boot media for it to recognise your peripherals....

Win7 install does NOT have USB3 drivers. These processors only have USB3 and that's the problem. That is why your mouse and keyboard do not seem to work. It is a serious one and there is a solution. What you need is a revised install DVD or USB with t

In order to solve this you need to slipstream USB 3 drivers into the Windows 7 installer. Gigabyte has provided an easy to use GUI utility called 'Windows USB Installation Tool' to do the same. The utility can be downloaded from here. You would fi

Often, users encounter problems where the boot menu appears before Windows starts, but the keyboard doesn't respond, making it impossible to select options like Startup Repair or Normal Boot.

You can't just plug keyboard and mouse to USB 2.0 (black) port instead of USB 3.0 (blue) port, because on modern computer platforms (Intel Skylake, Intel Kaby Lake, Intel Cannon Lake and AMD Ryzen) all USB ports, including USB 2.0 ports, look like USB

Win 7 doesn't have USB 3 drivers so mouse and /or keyboard doesn't work on the installation disk wizard when mouse and /or keyboard are on USB 3 slot. On BIOS try to set XHCI Hand off to enable