The OP sounds like you would lose him with the boot disc idea, besides, most techs use boot disc, he might not know the command to run it, or how to access the console, we shouldn't assume the poster knows anything, obviously in this case he doesn't know how to retrieve the recovery CD from dell, so lets help him thoroughly, and not just make comments which are not helpful without explanation.
A Boot CD, like the Ultimate Boot CD, is a disc that runs a shell of windows, from the disc itself without using your hard drive, which allows you to view your hard drive / computer, repair it, run virus scans, among many other things, boot disc, by and large, are used by computer techs to repair computers that have issues like your having.
Once your in the shell of windows after booting into the boot cd, this requires you to change your boot sequence in the bios to ensure that the CD/DVD Player is the first boot device (don't sweat this is easy, you usually press delete to enter the bios set up, just remember to SAVE your changes), you can then use a simple menu (usually to the bottom left) to run different things, what you want to do to run a Check Disc, is open the Command Prompt (If it has this option, some boot CDs do not!), then type in the following command: (Assuming C: drive is where windows is installed)
chkdsk c/r
This will repair your disc should it have errors, however, this does not garauntee that it will replace missing or badly damaged files!
The FIRST Step in diagnosing MOST comptuer problems is running a virus scanner!!! (Advice from a Berkly IT Professor.) The best virus scanner, which you can download and burn to a CD is Kasperky's Recovery CD, provided you have the internet, IF you do not, then download Avira's Rescue CD (This is already updated for you). Both are 100% FREE!
Hopefully you will be able to fix your issues following these steps, becausing using a recovery CD supplied by the manufacture may not fix the issue if in fact it's a virus stopping you cold or a damaged hard drive.
When you do the Check Disk what you are looking for is Bad Sectors, if you don't have 0 in this part (at the end of the scan it show this), then you have a bad hard drive! (Not good)
Hopefully this was more helpful for you.
GTechWiz