You do not need to download a separate .NET Framework 4.5 offline installer for Windows 10 because . All .NET 4.x versions are "in-place" updates, meaning version 4.8 is fully compatible with and replaces 4.5.
Windows 10 includes this by default, but you can ensure it is active: Install .NET Framework 3.5 on Windows 10 - Microsoft Learn net framework 4.5 offline installer for windows 10
Windows 10 does not include .NET Framework 4.5 in its default installation. Online installers ( dotNetFx45_Full_setup.exe ) require a live internet connection to download necessary components. In air-gapped or restricted environments, an is essential. You do not need to download a separate
Microsoft does not offer a standalone offline installer for .NET 4.5 on its main download page, but the exists and is still available via official channels. Online installers ( dotNetFx45_Full_setup
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to the target machine (USB drive, network share, etc.).