It's a good thing to me if it boots up without checkdisk. Even if my PC sometimes goes to checkdisk due to abrupt shutdown, I tend to press Esc to skip it as I'm usually impatient to see the slow progress of checking disk from 1% to 100%, though some would say it's not advisable.
Having said that, should I really need to checkdisk, I would enter chkdsk in DOS window just to get it to do the task.