If you have an MSDN (Microsoft Developer Network) or TechNet subscription, you can download Windows Server 2012 ISO from these platforms.
Modified installation media can silently transmit your administrator passwords to external command-and-control servers. windows server 2012 iso download
If you must continue using Windows Server 2012, you must invest in ESUs to receive critical security patches. If you have an MSDN (Microsoft Developer Network)
Get-FileHash C:\Path\To\Your\Downloaded.iso -Algorithm SHA256 Use code with caution. windows server 2012 iso download
Operating this software in a production environment without a specialized protection plan poses massive operational dangers: