I learned how to do this after the same things happened. I've been using Mint/Windows Dual boot OR Mint/Ubuntu by itself on different occasions YOU have to Format your Hard Drive to accept the Correct system. Windows 7 is NTFS and XP is FAT 32 if I remember? What I did to avoid problems in the future was use Linux MINT to download "K3B -a .iso burner" listed in your Software Manager to make a LIVE DVD of "G-PARTED" You can download the .iso for Gparted live Disc here --- http://gparted.sourceforge.net/livecd.php
This way, you can use GParted to Format your Hard Drive as it's in the DVD tray *boot from Tray. It's like Being Outside of your Computer looking IN and then you can Format the Whole Disc to the correct system needed. It Should Accept Windows Then. The reason I burned a GPARTED LIVED disc, is you can't really format the Disc when you're using Linux itself with the normal GPARTED program available in Linux MINT from the Software Manager. To do all this? just boot from your DVD tray, On DELL I don't know what it is to get into your Boot line up? F11, F12? or Escape button? usually it shows you when you first boot up at the bottom of the screen real fast. Just use the arrow keys to select Boot from DVD and it should start up the GPARTED live disc after you make one* It's kind of Sllllllowww but eventually comes on. It's pretty easy to do. Just right click and format or use the Menus. You Should be able to Load Windows ON after that. Good Luck. I liked Linux Mint14 and 15 had some glitches, but those stopped after I used "sudo apt-get update" and everything got better.
So 1. Download K3b in Linux Mint 14
2. Download Gparted .iso from link above
3. Use K3b to make a Live Gparted DVD *automatic default level will be fine
4. Boot from GParted DVD in tray and Format the Computer to proper system NTFS or FAT 32
5. Close out GParted after format *takes a while to shut down
6. Try and Install Windows again. It should accept your attempt this time.
Edited by johnnydollar, 13 August 2013 - 06:51 PM.