Kepware The Installer Was Unable To Find Required Root Certificates Exclusive <Web>

If you cannot run Windows Update because the system is offline, you must manually import the required certificates (e.g., DigiCert Global Root G3 or newer).

The most straightforward fix is to connect the machine to the internet and run Windows Update . This allows the OS to automatically update its Trusted Root Certification Authorities store.

Since many Kepware instances run on isolated OT (Operational Technology) networks, you likely need to move the certificates manually using a USB drive. Step 1: Identify the Missing Certificate If you cannot run Windows Update because the

It was a typical Monday morning for John, a controls engineer at a manufacturing plant. He had to install Kepware, a software solution for industrial automation, on his computer to connect to the plant's machinery. John had done this before, but this time, something was off.

When deploying or upgrading industrial automation systems, encountering a blocked installation can halt critical factory-floor operations. A common, frustrating roadblock faced by controls engineers and IT administrators is the PTC Kepware installation error: Since many Kepware instances run on isolated OT

When you run the KEPServerEX installer, it performs a critical security check known as . The installer checks its own digital signature against the list of root certificates stored in your Windows Certificate Store. If the specific root certificate needed to validate the KEPServerEX installer is missing or outdated, the installer cannot verify that the software is safe to install. Consequently, it halts the process to protect your system, displaying the now-infamous error message.

One of the most frustrating errors encountered during the installation or upgrade of Kepware products (including KEPServerEX, ThingWorx Kepware Edition, or LinkMaster) is: John had done this before, but this time, something was off

: If the error occurs post-installation during connection, use the OPC UA Configuration Manager

Export the file as a format and save it to a USB flash drive. Step 2: Import the Certificate to the Offline Machine