If you do not see a blue screen, then your power supply may be on its way out, or a component on your motherboard may be not holding its correct values. A new cooling fan wont hurt.
There is no upgrade path from Windows ME to Windows 2000. You would have to reformat the hard drive to remove ME before you install Windows 2000 from scratch.
Windows 2000 is a commercial operating system that Microsoft charges money for. Any free download of Windows 2000 would be software piracy, and hence illegal.
windows 2000 Professional windows 2000 sever windows 2000 standard edition windows 2000 home edition
Updates for Microsoft Windows 2000 can be found in many places. This includes many places online including software sites and the Microsoft website itself.
the four operating system found in the windows 2000 suite are : windows 2000 professional windows 2000 server windows 2000 advanced server windows 2000 datacenter server
There are no real benefits to running Windows 2000 instead of Windows 7. Windows 2000 is no longer supported so any security vulnerabilities will not be patched and any issues will not be corrected. The only real reason someone would want to run Windows 2000 instead of Windows 7 or Windows XP would be that their computer's hardware is not capable of running the newer operating systems.
Windows NT is what Windows 2000 is upgraded from.
Windows XP Professional is an upgrade to Windows 2000 Professional. Windows Server 2003 is an upgrade to Windows 2000 Server.
Windows 2000
Windows 2000
Windows 2000
Windows XP Professional is the successor to Windows 2000 Professional. Windows Server 2003 is the successor to Windows 2000 Server.