: Press the Windows Key , type cmd , right-click it, and select Run as Administrator .
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs
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. : Press the Windows Key , type cmd
Download .NET Framework 3.5 Windows 10 64-Bit Offline Installer
: Type the following command, replacing D: with your actual drive letter: Download
:You can download the full service pack package directly from the Official Microsoft Download Center . This is a "full package" (approx. 231 MB) that does not require an active internet connection during the installation process once downloaded.
Microsoft provides two primary ways to obtain the .NET Framework 3.5 offline: Microsoft provides two primary ways to obtain the
: Note the drive letter of the mounted media (e.g., D: or E: ).
: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)
: The process will reach 100% and show "The operation completed successfully".