Net Framework 4.7 2 Windows 7 Certificate Chain Error [updated] Jun 2026

When attempting to install on Windows 7 Service Pack 1 (SP1) , some users encounter a certificate chain validation error. This prevents the installer from verifying Microsoft’s digital signature, leading to installation failure. The issue is not caused by a corrupted .NET Framework installer but by outdated root certificate authorities (CAs) on the Windows 7 machine.

Download and install for your specific system architecture (x86 or x64) from Microsoft Support . Final Installation net framework 4.7 2 windows 7 certificate chain error

The most effective way to bypass this error is to manually add the missing Microsoft certificate to your system’s trusted store. When attempting to install on Windows 7 Service

Here is the step-by-step guide to fixing the issue and getting your installation finished. Why is this happening? net framework 4.7 2 windows 7 certificate chain error