F-Secure shell extension (context menu handler) crashing win10 on right-clicking anything

In the last 24 hours my win10 started crashing on right-clicking literally anything (files, folders) and I traced the problem to the F-Secure context menu handler with ShellExView. Which is to say, after first disabling all menu handlers and re-enabling them one by one and restarting explorer F-Secure was the only one causing the explorer crashes, and further it seems that only:


CppShellExtContextMenuHandler.FileContextMenuExt Class


is causing the problem, while:


FileContextMenu Class


seems to be fine. Luckily disabling the problem one doesn't remove the useful "Scan for viruses" context menu option so I'm content with this fix but I think it's way above the technical skills or problem-solving abilities of 95% of your users so hope a fix it forthcoming.



  • Sethu
    Sethu Posts: 724 Moderator

    Hello @Floslam 


    Thank you for reporting this issue, this is known issue and please refer this thread where you see our R&D guy replied.

  • Floslam
    Floslam Posts: 2

    Great! F-S still the best game in town.

  • dossgen
    dossgen Posts: 1

    I have downloaded this extension but I am having multiple issues in installing it. And I think it is due to the Lenovo Error Code 1802 that might have occurred in my device. What other methods shall I try to fix these issues in my laptop?

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