Author Topic: Avast Shell Extension  (Read 1226 times)

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Offline wikszefu

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Avast Shell Extension
« on: September 19, 2023, 11:12:07 AM »
Hello,

I'm using Avast Free Antivirus (latest version) on Windows 10 x64. My situation is the following:
Yesterday afternoon I suddenly started experiencing an awkward problem - when I right-clicked an object, Windows Explorer suddenly froze (it didn't happen every time, I'd say it was random). I've been using Avast Free Antivirus for years and such thing had never happened to me before. I decided to put "symptoms" in Google and what it said was it might be a problem with shell extensions. As advised, I downloaded the ShellExView and did the test (disabling the extensions and seeing which might be xausing problems). To my surprise, it turns out that the Avast Context Menu is the culprit. After I disabled it, the problem seems to disappear. I thought that it is impossible that the Antivirus is causing such problem and reinstalled it. After the reinstall the problem started occuring again, and it disappeared after I disabled the Avast Context Menu.

And here comes my question:
Can I keep the Avast Context Menu (and Icon Overlay Handler - when the Context Menu is disabled, automatically so is the Icon Overlay Handler) disabled? Is it safe? Will Avast still be running in the background and I will be provided the same level of protection as before?

Thank you in advance for your answers.

Offline Bülent KAYABAŞ

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Re: Avast Shell Extension
« Reply #1 on: September 20, 2023, 04:26:17 PM »
I am running Windows 11. I have a problem with Premium Security. The new version of this premium security 23.9.6082 (build 23.9.8494.792) Such a problem arose with this new update. Microsoft visual runtime error. When I press OK, the desktop goes away and comes back after a few seconds. It appears when I start Explorer. It doesn't happen all the time, sometimes, but it happens very often. Please appeal to the developers of Avast. Please solve it. I've been trying to find the source of the problem for 3 days. When I uninstall Premium Security, the problem goes away, but when I install it, it starts happening again. The link contains my computer's properties, explorer dmp files and a picture of the error. Thanks.

https://mega.nz/file/AVNEQbpZ#_-xJ_Cd4KcRerf_xhmB3gsltoS7KOciH276B3d0Q9Gs

Offline Spec8472

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Re: Avast Shell Extension
« Reply #2 on: September 20, 2023, 10:12:57 PM »
Bülent KAYABAŞ:

Thank you for the memory dumps, but the guilty module is C:\Program Files\StartAllBack\StartAllBackX64.dll

Offline Spec8472

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Re: Avast Shell Extension
« Reply #3 on: September 20, 2023, 10:17:56 PM »
wikszefu:

Can you please create a crash dump of frozen explorer.exe, you can do it using task manager. you can use Avast FTP for upload.
https://support.avast.com/en-eu/article/ftp-file-upload/#pc

Thank you
« Last Edit: September 20, 2023, 10:22:43 PM by Spec8472 »

Offline lucasfrance

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Re: Avast Shell Extension
« Reply #4 on: September 21, 2023, 10:31:47 AM »
I just uploaded the dmp file on Avast/incoming ftp : file name explorer.exe.7152.dmp

On Win 7 : Right click on one of the Desktop icon => Event :

Explorer.EXE
   6.1.7601.23537
   57c44efe
   msvcrt.dll
   7.0.7601.23403
   56f58ae0
   40000015
   000000000002a89e
   1bf0
   01d9ec5eeeb0fdf1
   C:\Windows\Explorer.EXE
   C:\Windows\system32\msvcrt.dll
   f4e03143-5852-11ee-9e8f-b42e993168e5

Offline Spec8472

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Re: Avast Shell Extension
« Reply #5 on: September 21, 2023, 10:42:06 AM »
Thank you lucasfrance, in your case Avast seems to be the cause. We will fix it.

Offline wikszefu

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Re: Avast Shell Extension
« Reply #6 on: September 21, 2023, 12:48:25 PM »
wikszefu:

Can you please create a crash dump of frozen explorer.exe, you can do it using task manager. you can use Avast FTP for upload.
https://support.avast.com/en-eu/article/ftp-file-upload/#pc

Thank you

Could you please send me step-by-step instructions on how to do a crash dump? I'm not so good in the IT stuff

Offline Spec8472

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Re: Avast Shell Extension
« Reply #7 on: September 21, 2023, 01:12:36 PM »
Hello wikszfu,

  • Execute task manager (Ctrl+Shift+Esc)
  • Click on "Details" tab, sort processes by name
  • Search for "explorer.exe" process
  • Select "Create dump file" item in context menu of the process

Thank you

Offline wikszefu

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Re: Avast Shell Extension
« Reply #8 on: September 21, 2023, 02:36:19 PM »
So in my case the freezing looks like that: all the elements of the explorer disappear and after a second they come back. So I can create a dump file after the elements come back. Is that OK?

Offline Spec8472

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Re: Avast Shell Extension
« Reply #9 on: September 21, 2023, 04:29:24 PM »
It looks like normal crash. Explorer.exe was restarted automatically by system. Manual dump file is not necessary in this case. The dump file should be created by system automatically in %LOCALAPPDATA%\CrashDumps folder with name explorer.exe.#pid#.dmp

Offline lucasfrance

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Re: Avast Shell Extension
« Reply #10 on: September 25, 2023, 07:47:03 PM »
Thank you lucasfrance, in your case Avast seems to be the cause. We will fix it.

Seems to be fixed with the 795 micro-update !

THANK YOU