You didn't answer any of the questions that Mark Flax asked you in "Where are you with this now?"
If the "Recovery Drive" came with the laptop, then you shouldn't have touched it--not at all. That is your recovery drive! It's the drive that they put in all of your recovery software so when you need to, you can just push a button at startup and it will automatically format your hard drive and re-install all of the programs that came with the laptop and restore it to factory settings. In essence, it brings the laptop back to EXACTLY how it was when you bought it.
If you can see this drive, then you must have bought a disk partitioning program and un-hid it, because when you buy a computer or laptop, the manufacturers hide these Recovery Drive partitions.
Now, it seems that you have restored the laptop "to factory settings" and you're complaining that it has restored all the files that were on the Recovery Drive--even including the one that you cannot delete. SO, I have yet another question to add to Mark's list...
HOW did you restore your laptop to factory settings, and WITH WHAT?
Did you make the Recovery DVDs BEFORE--or AFTER you screwed up the Recovery Drive?
The reason I ask, is that if you did so AFTER you screwed it up, then yes, it WOULD restore EVERYTHING--INCLUDING the file that you don't want to be restored. That's what it's supposed to do.
At least, that's what it did on the ASUS laptop that I'm working on now. Somehow, the lady had formatted her Recovery Drive too, and suddenly, her computer stopped working and kept going to blue screen, so she gave it to me to figure it out. When I saw that she had formatted that drive, I panicked, so I sat on it and did nothing for 3 weeks, until she found the set of recovery DVDs that I made for her when she bought it.
That's all I could do! It was either THAT or tell her to take it back to the store and let them ship it back to the manufacturer, but for THAT, there is NO guarantee, because that is not a factory defect, and even extended warrantees don't cover stupidity. She finally did find the recovery DVDs and I was amazed that they even restored the Recovery Drive in addition to the C:\ drive.
Those Recovery Disks are supposed to restore everything that was originally in the Recovery Drive at the time that you made those disks--and preferably, you would have made the disks as soon as you bought the laptop. That is why you get warnings to do so until you DO--or until you turn off those warnings.
Do you have a set of recovery DVDs that you made when you first bought your laptop? If you do, then use them! They will bring it back to exactly the way it was when you bought your laptop WITHOUT the added file.
If they don't work, because of age, try cleaning them with a solution that doesn't have rubbing alcohol in it and a clean, soft, lint-free cloth. I wear glasses and I've found that the glasses cleaning liquid and my glasses cleaning cloth works great.
HERE'S WHAT TO DO IF YOU DON'T HAVE AN OLD RECOVERY DISK SET... You say that you cannot delete the file--that it just won't delete. Am I understanding that correctly?
If so, then try using EMCO Move-on Boot which you can find at http://download.cnet.com/EMCO-MoveOnBoot/3000-2094_4-10397293.html?tag=mncol;1.
You would probably have to tell it to delete the file, and then it'll probably tell you to restart your laptop, and when you come back, it should be deleted.
Then HIDE that partition again. If you don't know how, ask for help...
If you want a D:\ drive to make backups on, or to put your important personal files on, then you'll have to use a disk partitioning software program.