Kepware The Installer Was Unable To Find Required Root Certificates Exclusive New! Jun 2026

Modern Kepware installers (v5.20 to v7.x) are digitally signed. During installation, Windows tries to verify this signature against a list of trusted Certificate Authorities (CAs), such as GlobalSign or VeriSign. If your OS cannot find these certificates—often because it hasn't received a Windows Update in a long time—the installer fails to protect you from potentially untrusted software. Step-by-Step Solutions Method 1: The Quick Fix (Run Windows Update) The simplest solution is to let Windows update itself. Go to . Click Check for updates .

: Sometimes the installer tries to verify the certificate online; ensure a firewall isn't blocking access to certificate revocation lists (CRLs). Google Groups Advanced Troubleshooting

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

Step 2.1: Identify and Download the Required Root Certificates Modern Kepware installers (v5

Resolving the Kepware Installer "Missing Root Certificates" Error The error message

When you run the installer, Windows tries to verify these signatures. If your operating system is missing the specific "Root Certificates" needed to validate those signatures—and the computer cannot connect to the internet to download them automatically—the installer will abort to protect the system. Solution 1: The "Quick Fix" (Internet Access)

The error message typically occurs when installing PTC Kepware (including KEPServerEX or ThingWorx Kepware Server) on a Windows machine that lacks internet access or has disabled automatic Windows Updates . Step-by-Step Solutions Method 1: The Quick Fix (Run

Right-click the certificate file and select .

Identify the missing certificate (often a or DigiCert root used for code signing).

If you cannot use the official patch and Windows Update is not an option, you can manually import the certificates. You will need to identify and download the specific certificate files (usually in .cer , .crt , or .p7b format). : Sometimes the installer tries to verify the

Method 1: Exporting and Importing via Microsoft Management Console (MMC)

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

: If the machine is offline, you must manually install the required root certificates (e.g., GlobalSign Root CA). Download the certificate from an online machine or PTC Support Right-click the certificate and select Install Certificate Local Machine and place it in the Trusted Root Certification Authorities Run as Administrator : Ensure you are running the

Fixed: Kepware "Installer was unable to find required root certificates"