Kepware The Installer Was Unable To Find Required Root Certificates Exclusive 〈CERTIFIED × Breakdown〉

Installing Kepware software usually proceeds without a hitch. However, a missing digital certificate can halt the entire process. This guide provides actionable steps to resolve the root certificate error. Why This Error Happens

The most direct fix is to connect the machine to the internet and run all pending Windows Updates to automatically refresh the certificate store.

If the installer fails, follow these steps to resolve the trust issue: Apply Windows Updates

To understand this error, we must first understand what a root certificate is. In the world of digital security, a root certificate is the master key. It is issued by a trusted authority (like GlobalSign or DigiCert) and is intrinsically trusted by your operating system. These root certificates are used to verify that a piece of software, like KEPServerEX, is authentic and has not been tampered with since its developer (PTC/Kepware) signed it. Installing Kepware software usually proceeds without a hitch

You can also force the installation via an elevated Command Prompt: certutil -addstore "Root" .cer ⚠️ Important Considerations Windows 7 Legacy: For systems like Windows 7 SP1

If the error changes to "KEPServerEX is not trusted," it confirms the root certificate was not successfully added to the "Trusted Root Certification Authorities" store. www.ptc.com If you'd like to troubleshoot further, let me know: version of Windows are you using? Is the machine completely offline KEPServerEX version are you trying to install?

: 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. Why This Error Happens The most direct fix

After applying the solution:

To resolve this, you must ensure the host machine trusts the certificates used by PTC Kepware.

Industrial PCs (IPCs) and servers isolated from the internet cannot use the automatic Windows Root Certificate Update mechanism. Over time, their built-in certificate stores become severely outdated. It is issued by a trusted authority (like

In the Certificate Import Wizard, select as the store location.

We will approach this problem from the easiest (least intrusive) to the most comprehensive.

: Industrial automation servers are purposely isolated from the internet. This prevents the OS from utilizing the native Windows Update Lazy Loading feature to pull down new third-party roots on demand.

If updates are not possible, you must manually import the missing root certificates into the Trusted Root Certification Authorities store for the Local Machine .

If the certificate store is corrupted, you must reset it.