F-secure critical error. asks to restart.

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Haugum
Haugum Posts: 1 New Member
in Device Protection

This is becoming a rather annoying recurring error. Every 5 minutes (or 2 hours if I chose so) the F-secure app asks to restart because of a critical error. The critical error suggests there is a conflict with another program, but the program listed is F-secure. So is the antivirus fighting itself?

I've tried restarts. Does not work.

I've tried quick reinstall. Does not work.

I've tried a complete manual delete and then reinstall. worked for 2 days, then the problem reappeared.

Please help, this is beyond annoying.

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Answers

  • Firmy
    Firmy Posts: 2,322 Community Manager

    Hello @Haugum

    Welcome to the F-Secure Community, and thank you for bringing this to our attention.

    We’ve received similar reports from other users regarding this issue. To investigate further and provide you with the best possible support, we kindly ask you to generate an fsdiag file and share it with us.

    I’ve sent you a private message. Please feel free to submit the fsdiag there securely.

    Thank you again, and have a lovely day.

    Firmy
    Community Manager | F-Secure Community
    🔐 Strengthening digital security through knowledge and collaboration
    🌐 Explore our User Guides | Knowledge Base for self-help resources
    💻 Empower yourself with Cybersecurity Insights and protect what matters

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  • Priidik
    Priidik Posts: 3 Observer

    Dear F-Secure team!

    Exactly same behaviour starting today. Upgrade to 25.6 did not change anything.

    Where to send the fsdiag file?

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  • Firmy
    Firmy Posts: 2,322 Community Manager

    Hello @Priidik

    Welcome to the F-Secure Community, and thank you for reporting this to us.

    You can share the fsdiag with me via private message. We will investigate the issue.

    Thank you.

    Firmy
    Community Manager | F-Secure Community
    🔐 Strengthening digital security through knowledge and collaboration
    🌐 Explore our User Guides | Knowledge Base for self-help resources
    💻 Empower yourself with Cybersecurity Insights and protect what matters

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  • Easyboy
    Easyboy Posts: 1 New Member

    Dear F-Secure team!

    Exactly same behaviour started yesterday. Version 25.5 worked fine until now

    Where to send the fsdiag file?

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  • TVC15
    TVC15 Posts: 140 Adventurer
    edited June 30
    https://community.f-secure.com/en/discussion/comment/141605#Comment_141605

    @Firmy can help you with that . I just thought I'd tag him for you :)

    Kind regards.

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  • Firmy
    Firmy Posts: 2,322 Community Manager

    Hello @Easyboy

    Welcome to the F-Secure Community, and thank you for reporting this to us.

    We’re here to help and happy to assist you further. To proceed, please share the fsdiag file with me privately. I’ve sent you a private message. Feel free to upload the file there at your convenience.

    Thank you.

    Firmy
    Community Manager | F-Secure Community
    🔐 Strengthening digital security through knowledge and collaboration
    🌐 Explore our User Guides | Knowledge Base for self-help resources
    💻 Empower yourself with Cybersecurity Insights and protect what matters

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  • Amityy
    Amityy Posts: 5 Observer

    Lots hit by this lately

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  • JOnes
    JOnes Posts: 1,037 Forum Guru
    edited July 1

    I would think that if the "sidegrade support" feature had more accurately detected conflicts and old versions on the device during the software update/installation phase, there would have been fewer of these fsdiag transmissions, but maybe one rainy day this will happen.😎

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  • diesellogistics
    diesellogistics Posts: 1 New Member

    I need help with this restarting problem too.

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  • mes1
    mes1 Posts: 1 New Member

    Dear F-Secure team!

    I'm experiencing the same problem. I've downloaded my fsdiag.zip, but I'm unsure which file to send. Need your help! thx.

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  • Firmy
    Firmy Posts: 2,322 Community Manager

    Hello @diesellogistics @mes1

    Welcome to the F-Secure Community, and thank you for reporting this to us.

    Could you share the fsdiag with me? I have sent you a private message and kindly share the fsdiag there.

    Firmy
    Community Manager | F-Secure Community
    🔐 Strengthening digital security through knowledge and collaboration
    🌐 Explore our User Guides | Knowledge Base for self-help resources
    💻 Empower yourself with Cybersecurity Insights and protect what matters

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  • Priidik
    Priidik Posts: 3 Observer

    Dear F-Secure team!

    After trying reasonable steps without success, I think the problem is related to "Device Protection" update failure.

    "Device Protection" update fails even when "Device Protection" is turned off.

    I can see, that in this situation only way to solve it, is total removal and clean install of F-Secure. But I would not start it before you confirm, that the issue should be solved already.

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  • Priidik
    Priidik Posts: 3 Observer

    Yes indeed I found the workaround - it is disabling IPv6 in your TCP/IP settings.

    The hint was from some other help forum post, which I can not find quickly right now.

    Of course this is only workaround - there are many situations, where disabling IPv6 permanently is not possible.

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  • Alfred_J
    Alfred_J Posts: 2 New Member

    Hi,

    Same problem - disabling IPv6 did not help - started 29.06.25. Seems that the 'Device Protection' update failure has been hanging arround half a year and still no solution. Version 25.6 did not bring any help to WIN11 equ, no problems with WIN10 equ so far.

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  • Firmy
    Firmy Posts: 2,322 Community Manager

    Hello @Alfred_J

    Welcome to the F-Secure Community, thank you for reporting this to us.

    To help us investigate further and assist you more effectively, please ensure that no conflicting software is installed on your device.

    In the meantime, I’d be happy to look into this for you. Could you please generate an fsdiag file and share it with me via private message? I’ve sent you a PM where you can upload the file directly.

    Thank you again, and I hope you have a lovely day.

    Firmy
    Community Manager | F-Secure Community
    🔐 Strengthening digital security through knowledge and collaboration
    🌐 Explore our User Guides | Knowledge Base for self-help resources
    💻 Empower yourself with Cybersecurity Insights and protect what matters

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  • Alfred_J
    Alfred_J Posts: 2 New Member

    Hi,
    Your - Firmy - advice did work…so far.
    Release license, un-install (windows uninstall - fs-uninstallation tool is for other programs as read.me text says?), re-boot, log-in MyFsec, add device, click click click… Now up and running. 'Device Protection' updates as planned.

    Thank you for the help.

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  • Nickolas
    Nickolas Posts: 1 New Member

    Gleiches Problem seit Ende Juni 2025, gefühlt seit Installation des Windows 11 Updates KB5060829. Ich würde gern eine FSDIAG-Datei erstellen,, damit ich Unterstützung erhalten kann. Ich weiss aber leider nicht, was das ist und wie dafür vorzugehen ist. Ich bitte um Support.

    Danke

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  • access24
    access24 Posts: 1 New Member

    Exactly the same problem as Alfred and Nickolas because it started end of June for me as well. I am about to remove the whole thing (if it's possible) and rely on built in Windows security instead because Win security reports everything ok. I thought it was due to me installing LibreOffice to be able to read some old Word files. The new Windows policy won't let me do it with Wordpad. I regretted my install and removed LibreOffice (prev. OpenOffice). But no way, it's catch 22, can't stop the interruptions. Pity I paid for 3 years and 2 more to go. The message in Norwegian is: "Omstart kreves. Feil i virus- og spionprogrambeskyttelse: datamaskinen er ikke beskyttet. Start datamaskinen på nytt. Husk å lagre arbeidet ditt." I would not be surprised if I got some spyware and it tries to turn off F-secure. But there should be a way to tackle it.

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  • Firmy
    Firmy Posts: 2,322 Community Manager

    Hello @Nickolas @access24

    Welcome to the F-Secure Community, and thank you for bringing this to our attention.

    Based on the submitted fsdiag files from other users, our analysis indicates that the issue may be caused by conflicting software installed on the same device. We kindly recommend checking to ensure that no other antivirus or security software is installed alongside F-Secure, as multiple antivirus programs running simultaneously can conflict with one another. This may lead to false detections or cause the software to malfunction.

    If no other antivirus software is present, we suggest performing a clean reinstallation of the F-Secure application using the F-Secure uninstallation tool. This will ensure that all components of the software are removed before installing the latest version. You can follow the instructions from this support page.

    Important: Before uninstalling, make sure that the Password Vault is either synchronized to another device or exported to avoid data loss.

    Please let us know how the process goes.

    Thank you, and have a lovely day.

    Firmy
    Community Manager | F-Secure Community
    🔐 Strengthening digital security through knowledge and collaboration
    🌐 Explore our User Guides | Knowledge Base for self-help resources
    💻 Empower yourself with Cybersecurity Insights and protect what matters

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