Net Framework 4.7 2 Windows 7 Certificate Chain Error |link| | 99% FREE |
The certificate chain error when installing .NET Framework 4.7.2 on Windows 7 SP1 (typically stating "A certificate chain processed, but terminated in a root certificate which is not trusted") is caused by outdated security certificates and a lack of support for newer code-signing standards. Core Causes
Download the certificate file (MicRooCerAut2011_2011_03_22.crt) from the official Microsoft PKI Repository. net framework 4.7 2 windows 7 certificate chain error
2. Background
- .NET uses Windows cryptographic APIs for chain building/validation (X509Chain, CertGetCertificateChain).
- Windows 7’s default trust store and SChannel behavior predate newer algorithms (e.g., SHA-2 transitions, RSA key sizes, ECC curves) and features (AIA fetching, CT policies).
- .NET Framework 4.7/4.7.2 introduced TLS improvements but still relies on OS crypto primitives; thus OS limitations persist.
- Go to the Microsoft Update Catalog website (using an updated machine).
- Search for KB2813430.
- Download the version matching your OS:
The Nature of the Error
Windows 7 requires specific updates to recognize modern SHA-2 signed installers. KB4474419: Adds SHA-2 code signing support. KB4490628: Servicing stack update required for SHA-2. The certificate chain error when installing