Exactly the same here!!! Today I've updated my AIS installation to the newest build (12.3.2279). I'm running Win 10 Home version 1607 build 14393.51 and IE version is 11.51.14393.0. No updates are available for IE 11 in Win 10 via MS. Hey Avast, please fix this issue because the AIS mentioned version of IE (11.494.10586.0) isn't the current version that will be shipped via Windows 10 1607 "Anniversary Update". The "10586" inside the AIS mentioned version indicates a Win 10 version 1511 from November last year. As I remember we had the same issue at the release of AIS build 2276 at the end of last month.