Getting .NET Framework 4.7.2 to run on Windows 7 is technically a hack. The operating system is out of support, and Microsoft is pushing users toward newer systems. However, if you need to run a specific piece of legacy software on an older computer, the solution is to manually bring Windows 7's security architecture up to date.
As an additional layer of complexity, in June 2023, Microsoft made a major change to its Windows Root Certificate Program. They began gradually retiring older root certificates that were secured with the SHA-1 algorithm. If your Windows 7 system has not received updates for several years, your mechanism may be broken or outdated. Installing the manual root certificate update (KB931125) as described above is the only reliable way to resolve this on legacy systems without relying on Windows Update. net framework 4.7 2 windows 7 certificate chain error
If you continue to experience issues, visiting the official Microsoft Q&A website and searching for the specific error code (e.g., 0x800B0109 ) can often lead to the most current solutions and community-driven fixes for your particular configuration. Getting
Search for and download (SHA-2 code signing support update). Search for and download KB4490628 (Servicing stack update). Install the Patches : As an additional layer of complexity, in June