Although Windows 7 SP1 natively supports SHA-2, early versions may not have the necessary updates to validate SHA-2-signed installers correctly. The certificate chain verification fails because an intermediate or root certificate is missing from the Trusted Root Certification Authorities store.
Choose and click Browse . Select Trusted Root Certification Authorities and click OK . Finish the wizard and retry the .NET installation. Step 2: Install Mandatory Security Updates net framework 4.7 2 windows 7 certificate chain error
The root cause of this issue lies in the decoupling of the Windows 7 Secure Channel (Schannel) and the root certificate trust stores from the demands of modern encryption standards. When Microsoft released .NET 4.7.2, they signed the installation packages using modern code-signing certificates. These certificates utilize SHA-256 hashing algorithms, which are the industry standard for security. However, a stock installation of Windows 7, particularly one that has not been kept rigorously updated, possesses an outdated Trusted Root Certification Authorities store. Although Windows 7 SP1 natively supports SHA-2, early
He ran the .NET installer again. This time, the progress bar didn't stutter. It glided across the screen, the digital "handshake" finally complete. The old machine roared to life, ready to speak the language of the modern web once more. 🛠️ Common Fixes for this Error Select Trusted Root Certification Authorities and click OK