Security Compliance
A certificate chain processed but terminated in a root certificate which is not trusted by the trust provider
Microsoft windows update install fails on some client machines with message A certificate chain processed but terminated in a root certificate which is not trusted by the trust provider
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Overview
Operation: Install Object: Update retrieval failed Details: A certificate chain processed but terminated in a root certificate which is not trusted by the trust provider
Product section
Cause
According to this post the problem might be caused by SHA-2 Code Signing Support requirement for Windows and WSUS
Resolution
2. If the error pertains to Third party patches, ensure the Create or replace a WSUS publishing certificate for third-party publishing on Endpoints where this error is received.