November 2014 Update for Windows 8.1 causes problems on Avast users’ computers

Avast antivirus keeps bothering its users, even the latest one, Windows 8.1, after installing the November update. It’s not a good time to be a avast user: The HTTPS Scanning module caused some issues in Firefox, followed by the Browser Cleanup tool.

Now Avast users who have installed November 2014 Update KB300850 in Windows 8.1 PCs with some problems such as not being able to turn off the computer, not being able to open Control Panel items and some programs, system not responding, etc. If the user uninstalls Avast, the system works fine.

Avast 2015 SP1 makes new option default in program update settings

Avast and Windows 8.1 November Update Issue

Avast is aware of the issue and they have delivered a patch via an emergency update. Avast team member said the reason for the problem in the thread that users reported: “We were able to simulate the problem in our lab and I think we fixed this problem. This Windows update calls new memory-related functions that are not fully supported by avast”.

Why did Avast add the emergency update to startup?

To verify that the patch has been installed for Avast 2015 on your computer, navigate to C:WindowsSystem32Driversfolder and ensure aswsnx.sys file with description avast virtualization driver has version number 10.0.2208.722. To do this, right-click on that system file, select Properties > Details, check the screenshot above.

Windows 8 showing black screen due to Avast [Fix]

Avast users, difficult for you, are you switching to another antivirus or keeping the same one? Let us know in the comments.

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