As Windows Server 2003 is an outdated operating system, it no longer receives security updates or support from Microsoft. This makes it vulnerable to known security threats and exploits. If you're still using Windows Server 2003, it's highly recommended to upgrade to a newer, supported version of Windows Server.
The OS uses SMBv1, a protocol vulnerable to exploits like EternalBlue. windows 2003 server iso
Install VMware Workstation or VirtualBox. As Windows Server 2003 is an outdated operating