65e2aeb5bfb5ec135b8521e923087ecfca0cf7e5e9abc32c400f382e9faefa63
It's important to distinguish between .NET Framework (Windows-only, version up to 4.8.1) and modern .NET (formerly .NET Core, cross-platform). .NET Framework 4.0 will run on Linux, macOS, or inside containers. For new development, you should target .NET 6.0 (LTS) or .NET 8.0 (LTS). However, for running legacy enterprise apps, the offline installer remains essential. net framework 4.0 offline installer download
Your OS is too old (Windows 2000, XP RTM) or unsupported. Solution: You need at least Windows XP SP3. or inside containers. For new development