The first of those may come from the BIOS. Have a look.
Then all others are caused by programs running at startup. Have a look at the list and disable or remove whatever you don't need anymore.
I don't know Win2K-Pro, but in other OS'es I would use MSCONFIG or a diagnostic/selective boot. I think somebody else will be able to tell you.
Hope this helps.
How can I make my floppy drive quit scanning for a disk so many times during startup? On my desktop, I'm using Win2K-Pro and the drive keeps scanning for a disk at least 8 times during each startup.