: The process will reach 100% and show "The operation completed successfully".
Microsoft provides two primary ways to obtain the .NET Framework 3.5 offline:
If you have a Windows 10 ISO or USB drive, follow these steps to install the framework without using any data: : The process will reach 100% and show
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
: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) This method is preferred because it ensures the
: Right-click your ISO file and select Mount , or insert your Windows 10 USB drive.
: Note the drive letter of the mounted media (e.g., D: or E: ). D: or E: ).
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs
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