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

If you have obtained the required .cer or .crt files from PTC Support , follow these steps:

This error typically occurs when the Kepware installer cannot verify its digital signature because the host machine is missing the necessary GlobalSign root certificates

:

Right-click the certificate file and select . Choose Local Machine as the store location. Select Place all certificates in the following store . Browse and select Trusted Root Certification Authorities . Click Finish to complete the import. Step 2: Run Windows Update

| Cause | Explanation | |-------|-------------| | | The installer cannot contact Microsoft’s Certificate Trust List (CTL) or Windows Update to download missing roots. | | Stale or corrupted root certificate store | Previous software or security policies have removed or blocked default Microsoft roots. | | Highly restricted Group Policy | Certificate Auto-Enrollment or Trusted Root Certification Authorities policies prevent automatic root update. | | Outdated OS image | Base Windows image lacks recent root certificate updates (common in legacy templates). | | Third-party security software | AV or endpoint protection intercepts and blocks root certificate download. | If you have obtained the required

As the day went on, John's frustration grew. He had to get this software installed to do his job, but it seemed like the installer was blocking him at every turn. He tried to troubleshoot the issue, checking the Windows registry, certificate stores, and even the system time (which he had heard could cause issues with certificate validation).

Resolving the Kepware Error: "The Installer Was Unable to Find Required Root Certificates" Browse and select Trusted Root Certification Authorities

This should be a last resort, used only in secure, isolated environments where the risk is minimal. It involves modifying the installer to skip the certificate verification.