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

where updates are no longer available, you may need to manually source the specific GlobalSign root certificates from a modern machine or the Official PTC Support Portal Admin Rights: Always run the installer as an Administrator

Installing or upgrading KEPServerEX (specifically version 6.4 through 6.18 and later) on older or disconnected Windows operating systems can sometimes fail. A common, frustrating error message encountered is: .

Based on official PTC knowledge base articles and numerous community insights, this guide will provide a comprehensive explanation of why this error occurs and, more importantly, how to resolve it permanently. where updates are no longer available, you may

Use a secure method (e.g., authorized USB drive) to transfer the .crt or .cer file to the offline machine. Install the Certificate:

For those who want to be absolutely certain this is the issue, the KEPServerEX installer keeps detailed logs. You can find these logs in the bootstrap.log file located in either: Use a secure method (e

: The installer executable is signed using trusted Certificate Authorities (CAs) like Sectigo or Entrust . If the operating system lacks these specific updated public root keys, it rejects the installer as untrusted software. Step-by-Step Resolution Strategies

An incorrect system date can break certificate validation. If the operating system lacks these specific updated

F. Reinstall or repair Windows Root Certificate Program