, always keep a copy of your Windows version's ISO handy, as it contains all "Features on Demand" (FOD) packages needed for offline repairs and upgrades.
If you have mounted your Windows ISO to drive letter D: , you don't even need to move the file: Open .
While many tech forums host this file for direct download, always verify the file hash or scan it for malware. Using the file from your official Windows ISO is the only 100% secure method. How to Install the .NET 3.5 CAB File (Step-by-Step) Microsoft-windows-netfx3-ondemand-package.cab Download
These usually mean DISM cannot find the source file. Double-check that your /Source path is exactly where the .cab file is located and that the file name matches exactly.
Run this command:\text{dism /online /enable-feature /featurename:NetFX3 /all /Source:D:\sources\sxs /LimitAccess} /Source : Points to the folder containing the .cab file. , always keep a copy of your Windows
Open the , type cmd , right-click it, and select Run as Administrator .
/LimitAccess : Prevents DISM from trying to contact Windows Update. Troubleshooting Common Errors Using the file from your official Windows ISO
In enterprise environments, a policy might be blocking "Optional Feature" installation. Check with your IT admin to see if "Specify settings for optional component installation and component repair" is enabled in Group Policy. Summary Table Requirement Command Type Online Internet Connection Windows Features GUI Offline (CAB) .cab file + Admin Rights DISM /add-package Offline (ISO) Windows Media + Admin Rights DISM /enable-feature
, always keep a copy of your Windows version's ISO handy, as it contains all "Features on Demand" (FOD) packages needed for offline repairs and upgrades.
If you have mounted your Windows ISO to drive letter D: , you don't even need to move the file: Open .
While many tech forums host this file for direct download, always verify the file hash or scan it for malware. Using the file from your official Windows ISO is the only 100% secure method. How to Install the .NET 3.5 CAB File (Step-by-Step)
These usually mean DISM cannot find the source file. Double-check that your /Source path is exactly where the .cab file is located and that the file name matches exactly.
Run this command:\text{dism /online /enable-feature /featurename:NetFX3 /all /Source:D:\sources\sxs /LimitAccess} /Source : Points to the folder containing the .cab file.
Open the , type cmd , right-click it, and select Run as Administrator .
/LimitAccess : Prevents DISM from trying to contact Windows Update. Troubleshooting Common Errors
In enterprise environments, a policy might be blocking "Optional Feature" installation. Check with your IT admin to see if "Specify settings for optional component installation and component repair" is enabled in Group Policy. Summary Table Requirement Command Type Online Internet Connection Windows Features GUI Offline (CAB) .cab file + Admin Rights DISM /add-package Offline (ISO) Windows Media + Admin Rights DISM /enable-feature