Ran across this tonight when I was sitting around relaxing and catching up on some newsfeeds I have been neglecting. Speaking of neglecting things, if you neglected to take advantage of the free Windows 10 upgrade, like me, then you can probably neglect reading this article too.
Seems folks have been having problems getting the Win10 Anniversary update to work. And it seems like users of Avast antivirus are the ones having problems. The article below gives Avast users info on how to get the update to work. So if you are an Avast users, please check out the article, and pass it along to other Avast users who may be having problems updating.