Ever notice that your computer sometimes takes extra time until you see the login prompt?
That's often due to the fact that I&TS has pushed out new software. Sometimes, that requires that the installation be completed after a restart, and, for some installations, we don't force a restart.
It seems especially long because you aren't given any indication of what's happening. Normally when you install software, a screen gives you some idea of its progress, as well as indicating what is happening. For these programs, there is just a vague message.
But this is easily fixed. When you go home at night, shut down and restart your computer. You don't have to be there during the restart, and will see the login prompt the next morning.
After this, though, the computer should start much more quickly.