Installing .NET Framework 4.7.2 on Windows 7 Service Pack 1 often triggers a frustrating block:

: Download the Microsoft .NET Framework 4.7.2 Offline Installer instead of the web installer to avoid network-related certificate issues during the process.

: Click Install Certificate... to open the Certificate Import Wizard. Select Store :

: Click Next , then Finish . You should see a message saying "The import was successful."

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.

If importing the certificate doesn't work, your system likely lacks the SHA-2 code-signing support update.

: This update helps resolve certificate validation failures on Windows 7.

Choose (requires admin rights) as the Store Location. Select Place all certificates in the following store .