Démarrage de Windows XP impossible

Avant que l'on me demande, voici ce que j'ai pu trouver :
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Disque /dev/sda: 163.9 Go, 163928604672 octets
255 têtes, 63 secteurs/piste, 19929 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Identifiant de disque : 0xc48ac48a

Périphérique Amorce Début Fin Blocs Id Système
/dev/sda1 1 1337 10739421 83 Linux
/dev/sda2 5100 19928 119113942+ f W95 Etendue (LBA)
/dev/sda3 1338 4977 29238300 83 Linux
/dev/sda4 * 4978 5099 979965 82 Linux swap / Solaris
/dev/sda5 5100 19928 119113911 7 HPFS/NTFS

Les entrées de la table de partitions ne sont pas dans l'ordre du disque
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# /etc/fstab: static file system information.
#
# Use 'vol_id --uuid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# / was on /dev/sda1 during installation
UUID=076ff62d-19fb-408a-bd20-82930d713a9a / ext3 relatime,errors=remount-ro 0 1
# /home was on /dev/sda3 during installation
UUID=429c2383-f635-479f-846f-7dfb67ce90dc /home ext3 relatime 0 2
# swap was on /dev/sda4 during installation
UUID=71ddbb74-ab64-4ed3-a4dc-689bccf59e96 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default 0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 20

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
#hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
## kopt_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=076ff62d-19fb-408a-bd20-82930d713a9a ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=076ff62d-19fb-408a-bd20-82930d713a9a

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
## indomU=true
## indomU=false
# indomU=detect

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title Linux Ubuntu 9.04
root (hd0,0)
uuid 076ff62d-19fb-408a-bd20-82930d713a9a
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=076ff62d-19fb-408a-bd20-82930d713a9a ro quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet

title Ubuntu 9.04 (mode de restauration)
uuid 076ff62d-19fb-408a-bd20-82930d713a9a
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=076ff62d-19fb-408a-bd20-82930d713a9a ro single
initrd /boot/initrd.img-2.6.28-11-generic

title Ubuntu 9.04, test de la memoire
uuid 076ff62d-19fb-408a-bd20-82930d713a9a
kernel /boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST