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Windows 7 Thread, Error 1718: <file> was rejected by digital signature policy in Technical; I've got a piece of software that has been deployed to a bunch of machines using SCCM which appear to ...
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    Error 1718: <file> was rejected by digital signature policy

    I've got a piece of software that has been deployed to a bunch of machines using SCCM which appear to complete successfully. When students run it, it looks like something is being configured as the install runs again and generates the error: Error 1718 <file> was recjected by digital signal policy and the software refuses to run.

    At first I assumed Applocker was to blame as I found this Verify AppLocker Policy | and when I ran the command on one of the affected machines it came back as Disallowed. So, I made the changes to allow anything from the C:\Windows\ccmcache\ folder and subfolders to run thinking that would solve it, no.

    Then I found this: FIX: Error message when you try to install a large Windows Installer package or a large Windows Installer patch package in Windows Server 2003 or in Windows XP: "Error 1718. File was rejected by digital signature policy"

    The hotfix is no good because it's only for XP and Server 2003, but I tried the registry workaround and that didn't work.

    I'm now out of ideas.... Anybody come across this before?

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    Quote Originally Posted by adamf View Post
    When students run it, it looks like something is being configured as the install runs again and generates the error: Error 1718 <file> was rejected by digital signature policy and the software refuses to run.
    Edit. Is the digital signature on the MSI valid?
    Last edited by Arthur; 2nd March 2014 at 08:00 PM.

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    That path is actually one of the default rules created by Applocker and is already in place.

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