It's not a shortcut problem.
Whats hapening is when you bootup windows everytime, you have instructed windows to run lots of programs straight away which is taking up all your system resources and the blue circle/hour glass is telling you to wait for it to finish starting up all of them at the same time.
It is highly unlikely it was just the dell support or the indexing service causing the problem. I'm not currently running Windows 7 as It's a pain in the butt when trying to do advanced procedures, so i cant give you exact answer.
Do as the other poster advised, and open the task manager by pressing and holding down CTRL, ALT and DELETE and clicking on task manager, and report back how many applications, processes in total your running. I'm expecting you have well over 60 items running all at the same time.
On windows XP and Vista, if you type msconfig
in either the RUN/SEARCH BOX in the bottom left corner it will bring up a msconfig window, and on one of the tabs on the top row is called startup. It will list all the programs you have told Windows to start automatically when you turn on your computer.