If you have tried all the above—root certificates, Windows Update, KB2813430—and the error persists, consider these advanced tactics.
You are not alone. This is a classic modern-day friction point between Microsoft's legacy operating system (Windows 7) and their modern code-signing security policies. net framework 4.7 2 windows 7 certificate chain error
If you want a more permanent fix, ensure your Windows 7 SP1 has these specific updates: Adds SHA-2 code signing support. If you have tried all the above—root certificates,
When attempting to install .NET Framework 4.7.2, the installer fails with the message: KB2813430—and the error persists