Windows 10 build 10547 unrolled 5 days ago. At first I ignored it because the blog post I read did not mention a fix for audio problems. Then today I read another blog post that said the Realtek audio problem was fixed. I started downloading it before 8 am, it is now close to 5 pm and it is only 50% downloaded.
After nothing happened overnight I closed the browsers, used CCleaner and then fixed Windows update. Build 10547 downloaded and installed in about 4 hours. My headphones do not work - fooled me again. I tried to update the Realtek driver and the program stuck. So I restarted and once again Firefox will only load aol mail the first time after an update and not a second time.