Hi MB NHLAPHO,
Welcome to Microsoft Community and thank you for providing us an opportunity to assist you.
As per the issue description, it looks like you want to download and install Windows 2000 on the computer.
I would like to inform you that Microsoft has ended support for Windows 2000. You can now migrate to Windows 7, Windows Server 2003, Windows Server 2008 or Windows Server 2008 R2. You can refer to the link for more details on this information:
For further reference, you can refer to the link:
http://support.microsoft.com/gp/lifewinfaq#Windows
Please feel free to contact us if you have any other query related to Windows and we would be happy to help you.