and I haven't heard of 2000me, but have you checked what programs are attempting to start when you boot up?
2 places to try;
1] Start > Programs > Startup - Anything there you do not want to load on startup? Right click the shortcut and delete it.
2] Start > Run > type in "msconfig", (without the quotes), and click OK. Check the Startup tab. Anything there looks suspicious, or you clearly do not want to load on startup, remove the tick. Click Apply, and you will be prompted to restart your computer. On restart, you will see a warning message saying you are on selective startup. You can suppress this message within the warning box.
When I start up some time I have my cpu usage at 100 %. it makes all programs run slow and seems to delay or postpond shutdown. I have a 9 3 and am running 2000me It seems a have a pop up on startup that I cannot get rid of. If this does load on startup then cpu runs fine.