The problem is that you installed on the D (recovery) partition instead of the primary partition (C).  I would suggest you start over, and install it correctly on the C partition and delete the D partition install.   You may even want to do a "clean" install by reformatting the C partition and install everything. www.support.dell.com  has both the instructions on how to do a manual install and also all the drivers needed.  Any programs will have to be reinstalled, you can't copy them to a backup drive and then copy them back to the C drive.
Hi I installed windows 7 proffesional over vista home premium (yes I knew before hand this would be dodgy)  as I had already purchased it on a student offer. Well it seems to be working fine but there are a few issues.  Whilst researching how to clean install it, I found that I must format the 'd' drive ( the recovery one) and install it there. (Maybe I didnt do enough???? was looking around for well over a couple of hours) So I did... and Now everything I install from scratch wants to install in the recovery drive. Its become default. The back ups I was advised to make all want to cram in there as well!! Can I make the C drive default again??? I don't think I can run programs off the original C Drive anymore!!! First post... be polite please...not sure if this is the right place... Please advise! Many many thanks in advance!!
installed windows 7 proffesional over vista home premium and...