Net Framework 3.5 Offline Installer Windows 10 64 Bit Jun 2026
dotnetfx35.exe /lang:ENU /norestart /source:C:\dotnet35
Many applications developed between 2005 and 2015 rely strictly on the .NET 3.5 runtime architecture. If you attempt to open a program that requires this version without having it enabled, Windows 10 will typically present an error code such as , 0x800F0922 , or 0x800F081F .
/Source:D:\sources\sxs : Specifies the local directory on your installation media where the payload files are hosted.
When users attempt to run these applications, the system prompts for the installation of "Feature on Demand" .NET 3.5. The default behavior is for the operating system to download the necessary payload from Windows Update servers. In scenarios where the target machine lacks internet connectivity, has a corrupted update cache, or operates behind a strict firewall, this process fails. Consequently, the requirement for an "Offline Installer" becomes paramount. This paper details the methodology for achieving this installation without external connectivity. Net Framework 3.5 Offline Installer Windows 10 64 Bit
These lightweight apps act as a wrapper for the DISM command shown in Method 1. Download a trusted offline installer utility. Run the application as an administrator.
Navigate to the following key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5
/Source:D:\sources\sxs : Directs the installer to the exact folder on your installation media containing the offline .cab deployment files. dotnetfx35
This method typically requires an internet connection but can sometimes work if the source files are already cached on the system. Microsoft Learn appwiz.cpl , and hit Enter. Turn Windows features on or off on the left panel. Check the box for .NET Framework 3.5 (includes .NET 2.0 and 3.0)
Browse and select your Windows 10 installation media folder ( sources\sxs ). Click the or Start button.
Restart your computer once the prompt indicates success. Method 3: Using Third-Party Offline Installer Tools When users attempt to run these applications, the
Even with an offline installer, you may occasionally run into issues. Here are solutions for the most frequent roadblocks.
This error almost always indicates that the DISM tool cannot find or read the source files. The most likely cause is an incorrect drive letter for your mounted ISO or a corrupted package. Double-check the drive letter in File Explorer and ensure your /Source path in the DISM command matches it exactly.
