install win 10

Aris199 Posts: 3 Observer

Good morning, the problem is that I can't install safe f-secure after uninstalling it, I did anything you asked from me but the problem remains I have been without f-secure on my computer for almost two months, I have many messages from you with instructions that I have followed and I have sent a message with the results without getting a reply.

Accepted Answer

  • Firmy
    Firmy Posts: 1,755 Community Manager
    edited June 8 Answer ✓

    Hello @Aris199

    We have received feedback from our R&D team. Based on the logs, we found that the failure was due to the missing root CA. We can see that the required root CA is installed on the system.

    2024-05-20 14:35:35.136 [3bac.2740] *E: InstallerExt::CheckSignature: 'C:\Users\Arista\AppData\Local\F-Secure\NetworkInstallerTemp\fs1844840.tmp\fs1851250.tmp\F-Secure-Safe-Network-InstallerUpgrade.exe' failed signature check: InvalidSignature

    And we can see that the required root CA is installed on the system:

    US, DigiCert Inc,, DigiCert Trusted Root G4 // valid until 2038-1-15

    Download the Installer:

    Verify the Digital Signature:

    1. Right-click on the downloaded file in File Explorer.
    2. Go to Properties, then navigate to Digital Signatures.
    3. Check if the signature is valid.

    Kindly let us know if File Explorer indicates that the signature is valid.

    Run the Installer:

    • Try running the installer directly and see if it succeeds.

    Reset System Proxy Settings:

    • Run cmd.exe as an administrator.
    netsh winhttp reset proxy
    • Reboot the computer and try the installer again.

    Please let us know the outcome. If you need further assistance, we are here to help.

    Thank you, and have a good day.


  • PawełP
    PawełP Posts: 260 Moderator

    Hello @Aris199

    We welcome you to our forum and thank you for contacting us through this channel.

    I was able to find a description of your problem in our system and the actions taken so far.

    Currently, your problem has been forwarded to the technical department for a thorough examination of the diagnostic data. This will allow us to determine why it is not possible to install F-Secure on your device despite the actions taken.

    I will be monitoring the situation on an ongoing basis and will keep you informed of progress.

    Best regards,


    Making every digital moment secure, for everyone

  • Aris199
    Aris199 Posts: 3 Observer

    Thank you, I am waiting to hear from you.

  • Aris199
    Aris199 Posts: 3 Observer

    Thank you now all ok😀!!!