Kaspersky Plus causing Windows 11 Explorer to open extremely slowly

[SimpleName]

My Windows 11 device is currently suffering from a problem that makes Explorer to launch extremely slowly and making the context menu almost unusable. The symptom looks like Explorer is taking forever to load Kaspersky's context menu. Uninstalling Kaspersky solved the issue and re-installing it can reproduce the problem. The context menu looks like this if Kaspersky is installed ("正在加载..." means Loading...)

When trying to show more options, Explorer will become unresponsive and must be killed using Task Manager. If you wait long enough, the context menu will eventually load.

The version of Kaspersky Plus is 21.19.7.527(a). I didn't experience this problem before yesterday, and I haven't downloaded/installed any new software during this time. I checked all other context menu entries and tried to uninstall them, but it seems like it's Kaspersky that is causing the issue. Disabling Kaspersky has no effects, it must be uninstalled for Explorer to function properly again. The last Windows Update is on 10/26 and the patch is KB5044384.

I've been using Kaspersky for years and never experienced problems like this. But I think I'll just uninstall Kaspersky for my PC to handle my work properly.

Edited November 12 by SimpleName
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[Wesly.Zhang]

Hello, @SimpleName

You can try hiding Kaspersky extensions in secondary menus. I guess this problem can be solved.

Regards.

[SimpleName]

@Wesly.Zhang

44 minutes ago, Wesly.Zhang said:

Hello, @SimpleName

You can try hiding Kaspersky extensions in secondary menus. I guess this problem can be solved.

Regards.

Thanks for your reply. But what exactly should I do to hide its menu entry? I can't find any settings for this.

[Wesly.Zhang]

3 hours ago, SimpleName said:

@Wesly.Zhang

Thanks for your reply. But what exactly should I do to hide its menu entry? I can't find any settings for this.

Hi, again

Try this:

• Open the Kaspersky product window
• Disable Self-Defense via Settings
• Exit the Kaspersky product (click the "K" icon in system tray menu and choose exit)
• Press Win+S and type regedit in a search bar
• Choose "Run as Administrator" option in Registry Editor application which you will find
• In the Registry Editor find the following registry branch:
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\KasperskyLab\AVP21.15\environment
• Create a new parameter in the branch:
Name: IsModernWin11ShellExDisabled
Type: String Value
Value: 1
• Enable Self-Defense in the product
• Restart explorer.exe
• Check if the issue persists

Regards.

[SimpleName]

8 hours ago, Wesly.Zhang said:

Hi, again

Try this:

• Open the Kaspersky product window
• Disable Self-Defense via Settings
• Exit the Kaspersky product (click the "K" icon in system tray menu and choose exit)
• Press Win+S and type regedit in a search bar
• Choose "Run as Administrator" option in Registry Editor application which you will find
• In the Registry Editor find the following registry branch:
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\KasperskyLab\AVP21.15\environment
• Create a new parameter in the branch:
Name: IsModernWin11ShellExDisabled
Type: String Value
Value: 1
• Enable Self-Defense in the product
• Restart explorer.exe
• Check if the issue persists

Regards.

Thanks again for your reply. But it seems like this solution no longer works for Kaspersky Plus 21.19. I did change the registry path to AVP21.19 one, but it has no effect on the context menu.

[Wesly.Zhang]

Hello,

No, it worked.

[SimpleName]

Sorry, didn't see the environment part.🫥