So Avast and AVG adopt the same antivirus engine to secure your system. In fact, these two security firms (Avast and AVG) are actually one about three years ago, Avast bought out AVG officially. Microsoft said on Windows 10 issue page Any application from Avast or AVG that contains Antivirus version.

Microsoft and Avast has identified compatibility issues with some versions of Avast Antivirus and AVG Antivirus. Warning: Though the compatibility issue is mainly found in the new Windows 1909 (November 2019 Update), there are still some users of its predecessor 1903 (May 2019 Update) said that they had encountered the same problem. Therefore, for users who are running any version of the Avast and AVG that may run into the compatibility problem (both free and paid antivirus programs), they’ll find the updates blocked on their device. Why did Microsoft do this? The main reason is that a compatibility issue was found between the world-famous free antivirus software suites and the new Windows 10 November update. Reason for Avast Blocking Windows 10 Update (Please let MiniTool help you solve most of the disk & operating system problems.) So the users of Avast and AVG (especially the older versions) can't find a way to install the new update they want. In fact, the new Microsoft Windows 10 update is blocked for systems running AVG or Avast. However, many security software users, especially Avast and AVG (some of the world's biggest anti-malware suites), reported that can’t find the new update on their system. Microsoft Windows 10 Update 1909 Is Blocked According to Microsoft, this new update is only a minor update which improves the performance of some elements and fixes some issues found in the previous version. It is the second big update for Windows 10 in the year 2019. On November 12, 2019, the new Windows version 1909 was officially released. This is all due to a compatibility issue found between the free antivirus tools and the new Windows version. They will find there’s no update available for them after the Windows 10 version 1909 has been released. The Windows 10 November 2019 Update has been blocked for all the AVG and Avast antivirus software users.

Avg and windows 10