Windows 10: Self-Signed Certificates no longer working since update

Discus and support Self-Signed Certificates no longer working since update in Windows 10 Support to solve the problem; Morning all, annoyingly Windows decided to update itself over the weekend and rebooted my PC. This also happened with a few other work PCs and left... Discussion in 'Windows 10 Support' started by johncassell, Oct 2, 2016.

  1. Self-Signed Certificates no longer working since update


    Morning all, annoyingly Windows decided to update itself over the weekend and rebooted my PC. This also happened with a few other work PCs and left users unable to login for an hour while it forced the update on us.

    Luckily we only have a handful of Win 10 PCs and decided to leave the rest on 7 (wise move I'm now thinking!)

    Anyway aside from that frustration, everything seems to be working except that our self-signed certificates no longer work.

    We are using Excel 2003 and have macro security set to HIGH. The spreadsheets are still signed with our certificate but now Excel just treats these spreadsheets as if the cert doesn't exist. Has anyone else experienced this and could help please?

    Thanks
    John

    :)
     
    johncassell, Oct 2, 2016
    #1
  2. Entegy Win User

    can not log in to corporate mail server

    If you're using self-signed certificates, you need to manually import the certificate to your phone. Windows Phone does not automatically import self-signed certificate for security reasons, unlike iOS and Android since self-signed certificates are often
    used in spoofing.
     
    Entegy, Oct 2, 2016
    #2
  3. 6680 CA certificates

    You should have two certificates. One is the self-signed certificate, and one is the root CA certificate that you used to sign the self-signed certificate. Put them both in the same .crt file in that order, upload them to your server and tell Apache to
    use that certificate file.

    If that doesn't work, by all means try uploading it to your phone, but I suspect that if it still doesn't work then the phone just doesn't like self-signed certificates.
     
    hiltonian---01, Oct 2, 2016
    #3
  4. Self-Signed Certificates no longer working since update

    i have a similar problem. Microsoft are not interested in solving what is a major problem for users of digital certificates
     
    tuckswood8, Nov 3, 2016
    #4
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Self-Signed Certificates no longer working since update

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