The fact is that it can and should (sometimes) be done… installing Windows 2000 on very old computers with only 32 megabytes (MB) of memory (RAM). I’ve seen 64 and 96 MB RAM computers struggling with Windows 2000 but if you configure the system correctly it can run fast and well. Note though that there is no “magic bullet”. Although your old computer can run faster it will never compete with modern hardware in terms of performance. This is a short guide to show you how to run Windows 2000 on such old computers and maintain a fast perfroming system. Link.
Run Windows 2000 on old computers with 32MB RAM