Net Framework 3.5 Offline Installer Windows 10 64 Bit May 2026
Download it, then run:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /Source:D:\sources\sxs /LimitAccess The installation will progress slowly from 1% to 100%. Do not close the window. It takes roughly 3–5 minutes on an SSD. Step 5: Restart Once you see "The operation completed successfully" , restart your computer. Part 5: Troubleshooting Common Errors on Windows 10 64-Bit Even with an offline installer, errors happen. Here are the top three fixes: Error 0x800f0950 (DISM failed) Cause: The source files are corrupted or the wrong architecture (32-bit vs 64-bit). Solution: Ensure your Windows 10 ISO matches your OS version (Home, Pro, Enterprise) and build number (22H2, etc.). Use a fresh ISO from Microsoft. Error 0x800F0906 (Source files could not be downloaded) Cause: Group Policy or Windows Update settings blocking access. Solution: Open gpedit.msc (Windows Pro/Enterprise) > Computer Configuration > Administrative Templates > System > Specify settings for optional component installation and repair > Enable and point to your network source. Error 0x800f081f (Source not found) Cause: You typed the wrong path or the sxs folder is missing. Solution: Verify the sxs folder exists on your mounted ISO. It should contain files like netfx3.cab . Part 6: Why the "Turn Windows Features On/Off" Method Fails Many users try the GUI approach: Control Panel > Programs > Turn Windows features on or off > Check .NET Framework 3.5 > OK. Net Framework 3.5 Offline Installer Windows 10 64 Bit
microsoft-windows-netfx3-ondemand-package.cab Step 5: Restart Once you see "The operation
Dism /online /Add-Package /PackagePath:"C:\path\to\cabfile.cab" If you already have a verified offline installer (a .cab or a folder with microsoft-windows-netfx3-ondemand-package.cab ), follow these steps for Windows 10 64-bit: Step 1: Verify System Architecture Right-click the Start button > System. Ensure "System type" says 64-bit operating system, x64-based processor . Step 2: Extract the Offline Files Place the installer folder on your desktop or C:\temp . Ensure the path has no spaces. Step 3: Run DISM (Deployment Imaging Service and Management Tool) Open PowerShell or CMD as Administrator. Solution: Ensure your Windows 10 ISO matches your
Type the following command (adjust the path to where your sxs folder or .cab is located):