A: No. Microsoft did not backport support for 20Gbps USB. Your ports will operate at USB 3.0 speeds (5Gbps) with generic drivers.
This is a driver conflict. Boot into Safe Mode, uninstall the MSI chipset driver, then install only the USB drivers from the separate package. msi usb drivers windows 7
Other brands (Asus, Gigabyte) had similar tools, but MSI’s was unique for two reasons: uninstall the MSI chipset driver
Windows 7 was released in 2009. USB 3.0 became standard years later. The Windows 7 installation media does not have native drivers for USB 3.0 ports. If your MSI motherboard only has USB 3.0 (blue) ports, Windows 7 cannot "see" your keyboard or mouse once the installer loads. Gigabyte) had similar tools