I was looking at getting a couple of HP laptops for work.
Noticed some hardware reviews where people had applied the Anniversary update and seemed to get a lot of issues:
Webcams not working (MS removed the ability to handle certain webcam stream codecs in W10 Anniversary)
Drivers for Audio crapping out.
Update getting stuck in a loop etc etc
Even a few iterations later - the update still seems to be a can of worms.
I ended up finding an HP page that had a list of devices they officially support on W10 Anniversary. There are many devices that are not supported.
Maybe this is really old news to everyone else - but are you having, or have you had issues?