Kepware The Installer Was Unable To Find Required Root Certificates Exclusive ((link)) ⚡ No Sign-up

The error message typically occurs during the installation or upgrade of PTC Kepware products when the Windows operating system lacks the necessary updated root certificates to verify the installer's digital signature. This is common on systems that are offline or have disabled Windows Updates, as they cannot automatically download new Certificate Revocation Lists (CRLs) or Trusted Root CAs. Primary Solutions

: If you are trying to connect via OPC UA after installation and see certificate errors, you may need to use the OPC UA Configuration Manager to manually trust the server's self-signed certificate.

In the Certificate Import Wizard, select as the store location. The error message typically occurs during the installation

If the server must remain offline or cannot be updated, you must manually install the required root certificates (often from issuers like GlobalSign or VeriSign):

Manually choose the store for the placement. In the Certificate Import Wizard, select as the

Obtain the necessary root certificate files ( .cer or .crt ) from a machine with internet access or directly from the PTC Support Portal .

If manual installation of GlobalSign or Microsoft root certificates does not work, it is recommended to open a support ticket with the Kepware team for specific offline certificate packages. If manual installation of GlobalSign or Microsoft root

If the error persists, review the installation logs to identify which specific certificate is missing. You can find these at: C:\Program Files (x86)\Kepware\KEPServerEX\bootstrap.log

To resolve this issue, you must ensure the system can trust the certificates used by the Kepware installer.