Windows 10 2016 BIAB, Will advise type of Laptop, but it is less than 1 yr old. Thx so much for responding, as we are totally at sea on this. We have used BIAB for at least a decade, changing up to the newest model as they come out. It has always been a totally dependable system upon which to build our music until very recently. We have changed sound cards and upgraded drivers. It is so strange that the problem started when we added the mixer.