The subject line specifies "Windows 8.1 6.3." This refers to Windows 8.1 (originally codenamed "Blue"), where the kernel version is reported as 6.3. Unlike Windows 7, Windows 8.1 introduced native support for many USB 3.0 controllers and simplified driver models for modern hardware. However, for hardware released prior to 2012 (like the B960), drivers are often back-ported Windows 7 packages or native inbox drivers.
Microsoft ended mainstream support for Windows 8.1 in . Many new apps and drivers no longer support it. Consider upgrading to Windows 10 (which runs well on the B960 with an SSD and 4+ GB RAM) for better driver and security support. The subject line specifies "Windows 8