Installation fails because of missing root certificates in PTC Kepware Products

• Installation fails because of missing root certificates with KEPServerEX / ThingWorx Kepware Server 
• Installation of Kepware keeps getting failed due to "Missing Root Certificates"
• Error in installation instructed to Verify File Signature Installation failed. KEPServerEX-6.X is not trusted
• Error in pop-up:

• KEPServerEX Installation fails due to root certificates on Windows Server 2016
• KEPServerEX Installation fails with message:

• Warnings from KEPServerEX 6.7/ThingWorx KEPWare Server 6.7 and earlier are below:
  • Error message in pop-up Check Root Certificates
  • Installation of KEPServerEX-[version].exe failed. The installer was unable to find required certificates. Please apply windows updates. If unable to apply Windows updates, contact support for instructions on installing root certificates
  • Error message indicating: "Installation failed. KEPServerEX (version) is not trusted"
  • Errors in C:\Program Files (x86)\Kepware\KEPServerEX\bootstrap.log  or  C:\Program Files (x86)\PTC\ThingWorxindustrialConnectivity\bootstrap.log: 
  • [Info] Check local computer, Trusted Root CAs, returned: -2146893807
    [Info] Check local computer, 3rd Party Root CAs, returned: -2146893807
    [Info] CheckRootCert, GlobalSign Failed, returned: 0x65B
    [Info] CheckRootCert, VeriSign Failed, returned: 0x65B
    [Info] CheckRootCert, MS_CRT Failed, returned: 0x65B
• ​Root certificates needed
• Error messages when upgrading PTC Kepware Products
• When upgrading Kepware Ver6.4 to Ver6.18.296.0, an error message is displayed and the upgrade cannot be completed

  • Check Root Certificates

    Installation of C:temp\KEPServerEX6-6.18.296.0exe failed.
    The installer was unable to find required root certificates.
    Please apply Windows updates. If unable to apply Windows Updates, contact support for instructions on installing root certificates.

• Error when try to instal kepserver 6.10.623.0 and 7.0.236.0 

Installation of KEPServerEX-[version].exe failed. The installer was unable to find required certificates. Please apply windows updates. If unable to apply Windows updates, contact support for instructions on installing root certificates