Do not rely on the web installer. Your "new" Windows 7 likely has TLS 1.2 disabled by default, so the web installer won't even connect to Microsoft's servers.
Step 1: Download the Prerequisites (on a modern PC) You need to transfer three files via USB to your Windows 7 machine:
Step 2: Install in strict order Do not skip this order. Install them one by one, rebooting after each.
Expected behavior:
Antes de intentar instalar .NET Framework 4.5, debes asegurarte de lo siguiente:
Si necesitas instalar .NET 4.5 en varios equipos o sin interacción:
NDP452-KB2901907-x86-x64-AllOS-ENU.exe /q /norestart