Kepware The Installer Was Unable To - Find Required Root Certificates Exclusive

Industrial environments often feature "air-gapped" computers that cannot access the internet. Windows normally updates its root certificates automatically via Windows Update. Without internet access, the machine cannot fetch the updated certificate chain required to validate the installer.

The error "kepware the installer was unable to find required root certificates exclusive" is not a bug in Kepware itself. It is a symptom of an outdated or misconfigured Windows certificate store. In an era of increasing cybersecurity standards (IEC 62443, NIST SP 800-53), root certificate validation is a mandatory security control.

By following the solutions in this guide—updating Windows root certificates, manually importing the missing CAs, or using advanced bypass switches—you will restore the ability to install Kepware on any industrial PC.

Quick Summary Checklist:

If you have followed all five solutions and still face the error, your Windows installation may have deeper corruption. Run sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth before contacting PTC Technical Support.

Remember: In the OT world, security and connectivity must coexist. Maintaining a healthy root certificate store is not just about installing Kepware—it is about ensuring the integrity of your entire industrial control system. If you have followed all five solutions and

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When running the KEPServerEX or PTC Kepware products installer, the error message "The Installer was unable to find required root certificates" typically occurs because the host operating system lacks up-to-date certificate authorities required to verify the installer's digital signature. This is common on legacy systems like Windows 7 or servers that have been offline and missed critical Windows Updates. Core Reasons for Failure

Missing Trust Chain: The installer is signed by authorities such as GlobalSign, VeriSign, or Microsoft. If their root certificates are not in the "Trusted Root Certification Authorities" store, the system views the installer as untrusted.

Outdated OS: Systems that cannot reach Windows Update often lack the latest Certificate Revocation Lists (CRLs) and new root certificates.

Security Policies: Strict environment policies might prevent the automatic update of root certificates. Solutions and Technical Steps To resolve this, you can use the following methods: Keywords integrated: kepware the installer was unable to

Run Windows Update: The primary solution recommended by PTC is to apply all pending Windows Updates, which naturally refreshes the root certificate store.

Manual Certificate Installation: If the machine is offline, you must manually import the missing certificates.

Identify the missing certificate (e.g., GlobalSign or Microsoft) from the bootstrap.log file located in the Kepware installation directory.

Use the Microsoft Management Console (MMC) to add the Certificates snap-in for the Local Computer.

Import the required .cer files into the Trusted Root Certification Authorities folder. Community & Support Guidance: cryptic installation failure:

Discussions on the PTC Community suggest that while manual installation works for some, others may need to contact support for a specific "root certificate pack" if they are on an unsupported OS version.

Alternative perspectives on Google Groups indicate that in some stubborn cases, even manual imports fail, requiring a direct support ticket for a remote session.

Official documentation from PTC Support confirms that this is a known issue for version 6.x and higher when digital signatures cannot be verified.

When deploying Kepware industrial connectivity solutions (such as KEPServerEX), IT and automation engineers may encounter a specific, cryptic installation failure:

"The installer was unable to find required root certificates."

This error typically halts the installation process immediately, preventing any Kepware product from being installed. Below is an exclusive breakdown of why this happens and how to resolve it permanently.