: Download the Microsoft .NET Framework 4.7.2 Offline Installer instead of the web installer to avoid network-related certificate issues during the process.
Choose (requires admin rights) as the Store Location. Select Place all certificates in the following store .
The most effective way to bypass this error is to manually add the missing Microsoft certificate to your system’s trusted store. net framework 4.7 2 windows 7 certificate chain error
: Double-click the downloaded .crt file and click Open .
If importing the certificate doesn't work, your system likely lacks the SHA-2 code-signing support update. : Download the Microsoft
This error occurs because the installer is signed with a modern SHA-2 certificate , but an unpatched Windows 7 system lacks the necessary root certificates or security updates to verify it.
: Click Install Certificate... to open the Certificate Import Wizard. Select Store : The most effective way to bypass this error
: Ensure your system clock is accurate. An incorrect date can cause valid certificates to appear expired.
: Get the Microsoft Root Certificate Authority 2011 ( MicRooCerAut2011.crt ) directly from the official Microsoft PKI Repository .
Click and select Trusted Root Certification Authorities .