You must have the KB2999226 (Universal C Runtime) update installed for the framework to initialize properly.
Windows 7 sometimes lacks the updated "Root Certificates" needed to verify Microsoft's digital signature. If the installation fails with a "certificate" error, you may need to manually update your root certificates. microsoft net framework 4.8 32 bit windows 7
.NET Framework 4.8 requires Windows 7 Service Pack 1 (SP1) . If you haven't updated to SP1, the installer will fail. How to Download and Install You must have the KB2999226 (Universal C Runtime)
Marge smiled, sliding the .NET disc back into its sleeve. “That little piece of software,” she said, “is the reason old machines can still talk to new things. It’s not glamorous. It’s not flashy. But without it, everything falls apart.” ” she said