|First of all, you should be running Windows SP3 now. |
You decide if you want the Dell utilities or not. I personally wouldn't use them.
Then there are some files there that are considered value added.
I suggest you first install SP3 and then go back to the Dell site and install everything related to your model.
If the files on the Dell site are older than anything SP3 may have installed then you may get a message asking if you want to install an older version. Say no.
Go to the link below to download SP3. After downloading it I suggest you first save a copy of it for future use. Then click on the download to install it. After Windows is finished go back to the Dell site.
You can always remove programs that Dell feeds you at a later date.