The error message typically occurs during the installation or upgrade of PTC Kepware products when the Windows operating system lacks the necessary updated root certificates to verify the installer's digital signature. This is common on systems that are offline or have disabled Windows Updates, as they cannot automatically download new Certificate Revocation Lists (CRLs) or Trusted Root CAs. Primary Solutions
If manual installation of GlobalSign or Microsoft root certificates does not work, it is recommended to open a support ticket with the Kepware team for specific offline certificate packages. The error message typically occurs during the installation
C:\Program Files (x86)\PTC\ThingWorxIndustrialConnectivity\bootstrap.log Look for entries like CheckRootCert, GlobalSign Failed to pinpoint the missing authority. Common Scenarios and Troubleshooting select as the store location.
: Users on older operating systems like Windows 7 or Windows XP SP3 frequently encounter this because these versions no longer receive automatic certificate updates. The error message typically occurs during the installation
In the Certificate Import Wizard, select as the store location.