Hi, I have an older Lenovo laptop that just made it through the upgrade to Win 10 but with some initial headaches related to the RealTek audio: 1. At about the 95% complete mark, the speakers began to feedback aggressively (ear-splitting) with the hardware mute button non-functional 2. At 100%, I forced a restart of the system but the shrieking continued 3. Two additional restart/power cycles later, the feedback ended and the system continued with the Win 10 upgrade as expected I suspect that the sound card may not have been ready for the upgrade and that Win 10 might have resorted to a generic driver, but after all the "fireworks", the RealTek Audio Manager software is working as expected and the sound/mic are also working properly. Did anyone else experience this and if so, did you need to eventually upgrade or change the driver for the sound card?