Months later, Apple released another update to the Boot Camp Support Software, version 5.1.5721. This time, the feedback was even more positive, with users praising the improved stability and performance.
Released by Apple in mid-2019, version 5.1.5621 is not the newest build available, but it is widely regarded as one of the most stable. Unlike newer versions that stripped out legacy drivers (looking at you, 6.x builds), this package retains full support for older audio codecs and trackpad gestures. boot camp support software 5.1.5621
Open Boot Camp Control Panel → Keyboard → Enable “Turn on keyboard backlight when the computer is in low light.” Ensure the ambient light sensor is clean. Months later, Apple released another update to the