When you run the installer, Windows tries to verify these signatures. If your operating system is missing the specific "Root Certificates" needed to validate those signatures—and the computer cannot connect to the internet to download them automatically—the installer will abort to protect the system. Solution 1: The "Quick Fix" (Internet Access)
The most direct fix is to download and install the required certificates yourself. Locate a Working Computer Find a machine with full internet access. Open a web browser. Download the Root Certificates
If you have obtained the required .cer or .crt files from PTC Support , follow these steps: When you run the installer, Windows tries to
: The most direct fix is to connect the machine to the internet and run Windows Update to automatically refresh the local Trusted Root Certification Authorities store.
Knowing these details will allow me to provide the exact command line arguments or download links you need. Share public link Locate a Working Computer Find a machine with
Summary
Click and allow the system to download and install all critical security updates. Restart the machine and run the Kepware installer again. Knowing these details will allow me to provide
The root certificate issue is almost always caused by a on your local machine.
Ensure that are approved for your group of industrial computers.