sudo blkid
/dev/sda1: UUID="9E5C5EEC5C5EBEA9" TYPE="ntfs" 
/dev/sda2: UUID="01CD216BF945C950" TYPE="ntfs" 
/dev/sda5: UUID="C2CCDF2CCCDF1A0D" TYPE="ntfs" 
/dev/sda6: UUID="23cd5b9c-4bca-4037-91ef-8f683eeb2489" TYPE="ext4" 
/dev/sda7: UUID="dcae754a-d2f4-4815-9115-fda2083cb4de" TYPE="swap" 

/etc/grub.d/windows
echo "Adding Windows entry" >&2
 cat << EOF
menuentry "MS Windows XP" {
	insmod ntfs
	set root=(hd0,1)
	search --no-floppy --fs-uuid --set 9E5C5EEC5C5EBEA9
	drivemap -s (hd0) \${root}
	chainloader +1
}
EOF


sudo chmod 755 windows

sudo update-grub
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.2.0-29-generic
Found initrd image: /boot/initrd.img-3.2.0-29-generic
Found memtest86+ image: /boot/memtest86+.bin
Adding Windows entry
done