Highly unlikely. Microsoft has publicly stated that .NET Framework 4.8.1 is the final version. Future security updates will come via Windows Update, but no version 4.9 is planned.
For standard Windows 10 machines, grab the .
For a manual interactive install, just double-click the .exe .
reg query "HKLM\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\full" /v version
Run the following command: Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NETFramework\v4.0\SKUs' | Select-Object PSChildName Troubleshooting: Installation Takes Too Long .NET Framework 4.9 Offline Installer for Windows
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The final version in the 4.x series is . After that, Microsoft shifted its focus to the cross-platform, modern .NET (starting with .NET 5, then .NET 6, 7, 8, and now .NET 9). The last purely Windows-native .NET Framework versions are 4.8 and 4.8.1.
: The offline installer supports command-line parameters for silent or automated installations, allowing advanced users to control whether a restart is required after installation.
Microsoft .NET Framework 4.9 is a crucial software component required to run millions of Windows desktop applications. While many users rely on the standard web installer, the standalone offline installer is the superior choice for system administrators, developers, and users with limited internet connectivity. Highly unlikely
Perfect for system administrators using command-line scripts ( /q /norestart ) via SCCM or Active Directory.
2. Failure Due to Trust Verification (Digital Certificate Issues)
If you are looking for an offline installer for the most recent supported version, here is the information for the .NET Framework 4.8.1 Offline Installer .NET Framework 4.8.1 Offline Installer
Double-click the downloaded offline installer executable (e.g., ndp49-kbxxxxxx-x86-x64-allos-enu.exe ). If prompted by User Account Control (UAC), click . For standard Windows 10 machines, grab the
The .NET Framework 4.9 offline installer is a self-contained installation package that includes all the components, libraries, and language packs required to deploy the runtime environment on a Windows machine.
While many users search for a , it is important to clarify that .NET Framework 4.8.1 is currently the final major version of the .NET Framework family. Microsoft has transitioned its primary development efforts to the modern, cross-platform .NET (formerly .NET Core), with .NET 9 and .NET 10 being the most current versions as of early 2026.
Since version 4.9 does not exist, the highest functioning, most compatible, and secure offline installer available is .
Up to 4.5 GB of available hard disk space (depending on architecture and existing installations)
The /q option performs a quiet installation, and /norestart prevents the system from restarting after installation.