: Press the Windows Key , type cmd , right-click it, and select Run as Administrator .
Download .NET Framework 3.5 Windows 10 64-Bit Offline Installer
Microsoft provides two primary ways to obtain the .NET Framework 3.5 offline: : Press the Windows Key , type cmd
The .NET Framework 3.5 is a critical runtime requirement for legacy applications and games built between 2005 and 2011. While Windows 10 comes with .NET Framework 4.x pre-installed, it does natively support apps designed for versions 1.1 through 3.5.
If you are working in an environment without internet access or frequently encounter errors like or 0x800f081f when using the standard Windows Update method, you will need an offline installation strategy. Official Offline Installer Options If you are working in an environment without
:The most reliable "offline installer" for Windows 10 is actually hidden within your Windows 10 ISO or installation USB. This method is preferred because it ensures the framework version perfectly matches your specific Windows 10 build. How to Install .NET 3.5 Offline via DISM (CMD)
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs How to Install
: Type the following command, replacing D: with your actual drive letter:
: The process will reach 100% and show "The operation completed successfully".
If you have a Windows 10 ISO or USB drive, follow these steps to install the framework without using any data: