Kepware The Installer Was Unable To Find Required Root Certificates Exclusive ((link)) -
Kepware's KEPServerEX is widely considered the industry standard for industrial connectivity, though its installation process can be sensitive to modern security standards on older or air-gapped systems.
There are several primary causes:
Export the file as a format and save it to a USB flash drive. Step 2: Import the Certificate to the Offline Machine
Maintain a folder on your industrial network containing the .CER files of the top 20 Global Root CAs. This saves hours of troubleshooting during future installations.
If any certificate in the chain is missing or untrusted, the installer aborts to prevent execution of potentially tampered software. the detailed technical analysis from CSDN
Opening this log file will reveal specific error codes that confirm a root certificate is missing. Common entries include:
Policies may explicitly disable automatic root certificate updates via registry settings like DisableRootAutoUpdate .
: For systems without internet access, you must manually install the required root certificates into the Trusted Root Certification Authorities
When running the 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 and potential pitfalls.
If you trust the installer file, you can attempt to run the installation via command prompt, bypassing the security check, though this is not recommended as a best practice. Summary of Solutions Reliability Connected to Internet Install DigiCert Root CA Offline/Secure Environment Disable Secure Boot UEFI/BIOS restriction Conclusion
If the installation environment is isolated from the internet (air-gapped) or missing recent Windows updates, the system cannot fetch the modern Public Key Infrastructure (PKI) root authorities used to sign the Kepware binaries. The installer automatically checks key third-party root authorities like , VeriSign , and the Microsoft CRT . If these root certificates are missing or expired, the OS marks the installer as untrusted, halting the installation to protect the machine. Method 1: Apply Windows Updates
Open the Windows and click the gear icon for Settings . Navigate to Update & Security > Windows Update .
Open the dialog (Win + R), type certmgr.msc , and press Enter. community forum discussions
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: If manual installation of root certificates does not work, it is recommended to open a support ticket at My Kepware for a remote session. PTC Community direct download links
To fix the problem, you must understand the root cause. In modern Windows environments, software vendors digitally sign their installers and executables using code-signing certificates. These certificates are issued by trusted Certificate Authorities (CAs) like DigiCert, GlobalSign, or Sectigo.