How to access Win7 on a dual boot machine?

I've been dual booting Win7 and Ubuntu for about 4 months and I got on it today to change the default boot on grub, because my girlfriend kept getting locked out when it reboots and, by default, goes to the Ubuntu partition. I tried using the command promt. I used [the command found here](http://launchintolinux.wordpress.com/2013/03/09/how-to-change-the-default-os-in-an-ubuntu-dual-boot-setup/) which was sudo gedit /etc/default/grub That didn't appear to do anything so I changed the grub using the file manager and changed "Default grub=4" which, is the boot I was supposed to use... This led to my Windows 7 partition dissapearing from the boot list, somehow, although all files are still showing up on the OS (checked through Ubuntu) and System Recovery shows my latest restore, attempted to restore and said it should be working.. So I'm assuming its hidden in some way? I'm using BT5R3. /etc/default/grub: # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. GRUB_DEFAULT=4 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian GRUB_CMDLINE_LINUX_DEFAULT="text splash vga=791" GRUB_CMDLINE_LINUX="" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' GRUB_GFXMODE=1024x768 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_LINUX_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" Shell history: 1 exit 2 startx 3 apt-get software center 4 apt-get software-center 5 sudo apt-get software-center 6 install software-center 7 mkdir /opt/java 8 mv -f jre1.70_05/ /opt/java 9 tar xzvf jre-7u45-linux-i586.tar.gz. 10 tar: tar xzvf jre-7u45-linux-i586.tar.gz 11 tar xzvf jre-7u45-linux-i586.tar.gz 12 apt-get install synaptic 13 help 14 install synaptic 15 apt-get synaptic 16 apt-get install synaptic 17 lspci -v 18 help] 19 help 20 help mapfile 21 help 22 info strict refs 23 startx 24 edit grub 25 search grub 26 apt-get install sphinxsearch 27 search grub 28 edit grub boot 29 find grub 30 startx 31 startsx 32 startx 33 -terminal 34 terminal 35 apt-get install rsplib-tools 36 --fix-missing 37 apt-get update 38 terminal 39 apt-get install rsplib-tools 40 terminal 41 update grub 42 update-grub 43 open partition manager 44 open 45 help 46 search partition manager 47 help 48 find partition manager 49 find partitionmanager 50 startx 51 find gparted 52 get gparted 53 get Gparted 54 get-apt Gparted 55 X-AppInstall-Package=gparted 56 help 57 startx 58 run history 59 history $ sudo grub-mkconfig > /dev/null Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.2.6 Found initrd image: /boot/initrd.img-3.2.6 Found memtest86+ image: /boot/memtest86+.bin done $ sudo fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xb3b6d9a6 Device Boot Start End Blocks Id System /dev/sda1 * 1 13 102400 7 HPFS/NTFS Partition 1 does not end on cylinder boundary. /dev/sda2 13 83647 671785946 7 HPFS/NTFS /dev/sda3 83647 119927 291422209 5 Extended /dev/sda4 119927 121577 13249536 7 HPFS/NTFS /dev/sda5 83647 118706 281610240 83 Linux /dev/sda6 118706 119927 9810944 82 Linux swap / Solaris