Download Net Framework 3.5 Offline Installer Windows 11 May 2026
Get-WindowsOptionalFeature -Online -FeatureName NetFx3 State should show Enabled . Error 0x800f081f – Source files not found Fix: Ensure the CAB file path is correct and not on a network drive. Move it to C:\temp\ and retry. Error 0x800f0906 – Cannot download required files Fix: You’re not truly offline, or the source is invalid. Use the extract from ISO method instead. Error 0x80070005 – Access denied Fix: You must run Command Prompt or PowerShell as Administrator . Error “The option /limitaccess cannot be used with /source” Fix: Use the correct command syntax from Method 2 or the DISM add-capability format shown above. Download Links (Direct – No Web Installer) | Version | Architecture | Direct Link (Microsoft Catalog) | |----------|--------------|--------------------------------| | Windows 11 22H2/23H2/24H2 | x64 | KB5011048 Download | | Windows 11 21H2 | x64 | Same KB – works across builds | ✅ These are official Microsoft CAB files – safe and signed. Frequently Asked Questions Q1: Is .NET Framework 3.5 safe on Windows 11? Yes. It’s a fully supported Windows component, just not installed by default. Microsoft provides security updates for it via Windows Update. Q2: Will it break .NET 6/7/8 apps? No. .NET Framework 3.5 runs in a separate runtime environment and does not interfere with newer .NET Core or .NET 5+ versions. Q3: Why not just use “Turn Windows features on or off”? That method still requires an internet connection to download files from Windows Update. If you have no internet or strict firewall rules, it will fail. Q4: Can I use this offline installer on Windows 10? Yes. The same CAB file works on Windows 10, version 1809 and later. For older Windows 10 builds, use KB5011048 for your specific version. Q5: Is there a standalone EXE installer? Microsoft no longer provides a standalone EXE for .NET 3.5 on Windows 10/11. The CAB + DISM method is the official offline method. Final Thoughts Installing .NET Framework 3.5 offline on Windows 11 is straightforward once you have the correct CAB file or installation ISO . Avoid third-party “downloaders” that may bundle adware or outdated files.
The solution? A – no internet required after download. download net framework 3.5 offline installer windows 11
DISM /Online /Add-Capability /CapabilityName:NetFx3~~~~ /Source:C:\Users\YourName\Downloads\Windows11-KB5011048-x64.cab /LimitAccess Most installations complete without a reboot, but some apps may require one. Step 4: Verify Installation Open Control Panel → Programs and Features → Turn Windows features on or off . Check that .NET Framework 3.5 (includes .NET 2.0 and 3.0) is enabled. Error 0x800f0906 – Cannot download required files Fix:
Published on: April 18, 2026 Category: Windows Tutorials Error “The option /limitaccess cannot be used with
Or run this PowerShell command:
DISM /Online /Add-Capability /CapabilityName:NetFx3~~~~ /Source:C:\path\to\file.cab /LimitAccess