Microsoftwindowsnetfx3ondemandpackagecab //top\\ Download Server 2012 R2 New Jun 2026

Set it to and check the box marked Contact Windows Update directly to download repair content instead of Windows Server Update Services (WSUS) .

This is the most straightforward method for administrators who prefer a GUI.

This will install the feature directly using the files contained in the ISO, bypassing Windows Update. Set it to and check the box marked

These errors indicate that Windows cannot find the source files or lacks permissions to read them.

This is the classic error indicating the system cannot locate or access the required payload files. This often happens when the source path is incorrect, or a WSUS policy is blocking the installation. These errors indicate that Windows cannot find the

For non-production or evaluation environments, you can extract the .cab from the official evaluation ISO:

If you do not have the installation media, you can force the server to download the files from Microsoft: Open ( gpedit.msc ). For non-production or evaluation environments

Note: PowerShell will scan the source path for the CAB automatically if properly named.

If PowerShell is unavailable, use the Deployment Image Servicing and Management (DISM) tool: