Winxp boot in selective start up

Hi

I'm new here and my problem is when I first got this Dell computer the only way to get to boot up (with the help of a Dell Tech) was to use selective start up. That has been the way it was configured. It takes minutes if I have to restart.

Now I get a message after it boots up saying that I can click on the regular
start button and not go through the selective start up. I'm concerned about doing that because of the trouble I had when I first got the computer

The PC is DELL DIMENSION 061

PENTIUM 4 CPU

3.06GHZ

0.99 GB RAM

PHYSICAL ADDRESS EXTENSION

Thanks for any advice.