The error “Installer was unable to find required root certificates” is a safeguard, not a bug. It prevents installation in environments with incomplete trust chains. The solution involves restoring missing Microsoft root certificates—either via Windows Update, manual import, or root certificate update package. Maintaining current OS patches and proper system time eliminates the issue entirely.

Kepware uses digital signatures to ensure the software hasn't been tampered with. These signatures are issued by trusted Certificate Authorities (CAs) like , VeriSign , or Microsoft . The installer fails if:

This guide provides a comprehensive overview of why this error occurs and the step-by-step solutions to resolve it. Why the Root Certificate Error Occurs

The error message is vague, but the required root certificate is almost always the or a similar major root authority used by PTC's code signing vendor.

w32tm /query /status

Follow the wizard to select your downloaded certificate and complete the import. 3. Verify Local Group Policy

Download the Kepware installer again. Right-click the .exe file → Properties → Digital Signatures tab. Select the signature (e.g., "PTC Inc." or "Kepware Technologies") and click Details → View Certificate → Certification Path tab. You will see a chain:

Kepware The Installer Was Unable To Find Required Root Certificates _best_ | LIMITED — 2025 |

The error “Installer was unable to find required root certificates” is a safeguard, not a bug. It prevents installation in environments with incomplete trust chains. The solution involves restoring missing Microsoft root certificates—either via Windows Update, manual import, or root certificate update package. Maintaining current OS patches and proper system time eliminates the issue entirely.

Kepware uses digital signatures to ensure the software hasn't been tampered with. These signatures are issued by trusted Certificate Authorities (CAs) like , VeriSign , or Microsoft . The installer fails if: The error “Installer was unable to find required

This guide provides a comprehensive overview of why this error occurs and the step-by-step solutions to resolve it. Why the Root Certificate Error Occurs Maintaining current OS patches and proper system time

The error message is vague, but the required root certificate is almost always the or a similar major root authority used by PTC's code signing vendor. The installer fails if: This guide provides a

w32tm /query /status

Follow the wizard to select your downloaded certificate and complete the import. 3. Verify Local Group Policy

Download the Kepware installer again. Right-click the .exe file → Properties → Digital Signatures tab. Select the signature (e.g., "PTC Inc." or "Kepware Technologies") and click Details → View Certificate → Certification Path tab. You will see a chain: