Navigate to: Computer Configuration > Policies > Windows Settings > Security Settings > Public Key Policies .
Ensure the certificates are also present in the Third-Party Root Certification Authorities store. Method 3: Verify the Installer Digital Signature
Kepware often provides different installation packages. The full setup package strictly enforces signature validation. Navigate to: Computer Configuration > Policies > Windows
When installing or upgrading like KEPServerEX or ThingWorx Kepware Server, you may encounter a critical installation failure. The setup wizard abruptly halts and displays a definitive error message:
The error message typically occurs when installing PTC Kepware software (such as KEPServerEX) on a Windows machine that is either completely offline or lacks recent Windows Updates. The error "The installer was unable to find
The error "The installer was unable to find required root certificates exclusive" is a security check failure. It is resolved by ensuring the Windows Operating System trusts the digital signature of the Kepware installer. In most cases, running resolves the issue immediately. For air-gapped systems, manually importing the root certificate from a trusted USB source is the standard industrial solution.
: Legacy environments running older versions like Windows 7, Windows Server 2012, or unpatched Windows Server 2016 often lack the updated root certificates required by newer Kepware binaries. Re-run the installer.
KepwareInstaller.exe /SkipRootCheck
Ensure the terminal outputs the line: CertUtil: -addstore command completed successfully. Re-run the installer.