The error can be bypassed by downloading the update separately from installing it.
Or, contact the application vendor to verify that it is a valid Windows Installer patch package.
Try using the Microsoft Fix it wizard, available at
You won't be able to access any of the Anniversary Update's cool new features, but you will be able to use your webcam.
The second option is to try this registry hack from Twitter user and engineer Rafael Rivera.
Incorrectly editing the registry can cause serious problems -- and even brick your device -- so consider yourself warned.