Kepware The Installer Was Unable To Find Required Root Certificates Exclusive Page

In some cases, the Windows certificate store itself may be corrupted, or specific Group Policy Objects (GPOs) may be stripping out third-party root certificates, leaving the machine unable to trust commercial software vendors.

If the problem persists after trying the steps above, contact PTC Kepware support with the installer log – they can provide the exact thumbprint of the required root certificate for your product version. In some cases, the Windows certificate store itself

Obtain the required .cer or .crt files from a machine with internet access or the PTC Support Portal . By following the methods in this guide—especially the

By following the methods in this guide—especially the for air-gapped networks—you can bypass this roadblock in minutes. Downgrading is a security risk and often fails worse

: Ensure your system isn't blocking certificate updates:

Reality: Older versions (pre-6.0) used SHA-1 certificates, which are now deprecated. Modern Windows rejects them. Downgrading is a security risk and often fails worse.

When deploying Kepware to multiple industrial PCs, create a base Windows image that includes: