After installation:
Windows 7 original release does not support SHA-2 code signing. Fix: Install KB3033929 (Security update for x86 Windows 7) before installing any modern .NET Framework. download microsoft net framework for windows 7 32 bit
For the end-user, this means that without the Framework installed, applications written in C# or VB.NET simply cannot run. On Windows 7, this is particularly critical because the operating system did not come pre-installed with the latest versions required by software developed in later years. After installation: Windows 7 original release does not