I found the solution to create a .reg file with this code and execute it: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager] "RegisteredProcessors"=dword:00040960 Then your Windows 2000 will support up to 65,536 cores. It works on Windows 2000 Pro, Server, Advanced Server, Datacenter Server. Also Windows XP and 2003.
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