The
ChesapeakePCUsersGroup refurbishes donated computers. For an $80 'donation' you can get a much newer computer with a more up-to-date operating system.
Or, you could go to their
workshop with your old computer and they may agree to reload Win2K for you.
Whether you decide to get a new one or see if they can help fix your old one, the workshop is where you would go.
Hope that helps.