Kepware The Installer Was Unable To Find Required Root Certificates Exclusive ((free)) ⚡ Plus
"The installer was unable to find required root certificates" typically occurs during the installation or upgrade of KEPServerEX
Step 1 – Identify the Required Certificate: Kepware installers typically require certificates from DigiCert, Sectigo, or Microsoft Windows Production PCA 2011. The exact root can vary by version, but DigiCert High Assurance EV Root CA is a common requirement. "The installer was unable to find required root
Are you working on an offline machine or an older operating system version? Open Settings → Update & Security → Windows
- Open Settings → Update & Security → Windows Update
- Click Check for updates (even optional updates)
- Install KB931125 (Root Certificate Update) – automatically included in recent updates
3. Corrupted or Missing Certificate Store
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. "The installer was unable to find required root