pantz.org banner
Recovering from critical windows errors
Posted on 05-25-2006 03:20:00 UTC | Updated on 03-20-2011 04:01:58 UTC
Section: /software/windows/ | Permanent Link

If you ever get messages like this:

Windows could not start because the following file is missing or corrupt:
\WINDOWS\SYSTEM32\CONFIG\SYSTEM

Windows NT could not start because the below file is missing or corrupt:
c:\WINNT\System32\Ntoskrnl.exe

Windows NT could not start because the below file is missing or corrupt:

c:\WINNT\System32\HAL.dll

NTLDR is Missing
Press any key to restart

Invalid boot.ini
Press any key to restart 

when trying to boot Windows XP your not alone. This happens to more people than you would think and sometimes it's easy to correct when you know what to type at the Windows Recovery Console. Well, I read a great article about some commands you can use to fix these problems. I'll relist info from the article below so I don't forget this the next time some XP machine puke's it's guts.

First, you can attempt to repair the above errors by starting Windows setup using the original Windows XP CD-ROM. This is done by placing the orginal Windows XP CD into the CD-ROM drive and booting from it. You might need to go into your BIOS to make sure your boot priority is set to try booting from the CD-ROM drive first. Usually you can get into your BIOS by pushing the "Delete" key right when the computer is starting. After the CD has booted to Windows XP setup screen you'll see an option for selecting 'R' to start repair console. Push the "r" key on the keyboard and it should bring you to the Windows Recovery Console. Select "1" for the drive to fix usually there is only one selection to choose. Then if your prompted for the administrator password type that in an hit the "enter" key.

Now onto the commands. From the C:\windows prompt they are:

CD ..
CHKDSK c: /r /f
ATTRIB ?H C:\boot.ini
ATTRIB ?S C:\boot.ini
ATRIB ?R C:\boot.ini
del boot.ini

Before we execute the next command let's read about what's is going to happen.

After execution the command BOOTCFG /Rebuild will ask you some questions. The answers are as follows:

Add installation to the boot list? Y
Enter Load Identifier: Windows XP
Enter OS load Options: /FASTDETECT /NOEXECUTE=OPTIN
                                        /\
                                        ||
Set the /NOEXECUTE=OPTIN only if you have CPU featuring Intel's XD or AMD's NX buffer overflow protection.
If not then just leave it off. Any processor made after 2005 probably has this built in. Intel implemented
this feature in x86 processors beginning with the Pentium 4 processors based on the core codenamed Prescott.
If you have an AMD 64bit processor then you should have NX overflow protection. Also, no need to turn it on
unless you are installing Windows XP Service pack 2 or higher. Same for Windows Server 2003 Service Pack 1
or higher.

Now that you know what to do execute the last 2 commands.

BOOTCFG /Rebuild
FIXBOOT

After that the FIXBOOT command asks "Sure you want to write a new bootsector to the partition C:?". Answer "Y" for yes. Then at the prompt type "exit". This should reboot the computer. Take the cdrom out of the drive before the boot process starts and hopefully your back up and running.

A last note for anyone having boot loader problems (you know who you are) the command to over write another boot loader like Grub or LILO is:

fixmbr

Del.icio.us! | Digg Me! | Reddit!

Related stories


RSS Feed RSS feed logo
About


3com
3ware
alsa
alsactl
alsamixer
amd
android
apache
areca
arm
ati
auditd
awk
badblocks
bash
bind
bios
bonnie
cable
carp
cat5
cdrom
cellphone
centos
chart
chrome
cifs
cisco
cloudera
comcast
commands
comodo
compiz-fusion
corsair
cpufreq
cpufrequtils
cpuspeed
cron
crontab
crossover
cu
cups
cvs
database
dbus
dd
dd_rescue
ddclient
debian
decimal
dhclient
dhcp
diagnostic
diskexplorer
disks
dkim
dns
dos
dovecot
drac
dsniff
dvdauthor
e-mail
echo
editor
emerald
ethernet
expect
ext3
ext4
fat32
fedora
fetchmail
fiber
filesystems
firefox
firewall
flac
flexlm
floppy
flowtools
fonts
format
freebsd
ftp
gdm
gmail
gnome
greasemonkey
greylisting
growisofs
grub
hacking
hadoop
harddrive
hba
hex
hfsc
html
html5
http
https
idl
ie
ilo
intel
ios
iperf
ipmi
iptables
ipv6
irix
javascript
kde
kernel
kickstart
kmail
kprinter
krecord
kubuntu
kvm
lame
ldap
linux
logfile
lp
lpq
lpr
maradns
matlab
memory
mencoder
mhdd
mkinitrd
mkisofs
moinmoin
motherboard
mouse
movemail
mplayer
multitail
mutt
myodbc
mysql
mythtv
nagios
nameserver
netflix
netflow
nginx
nic
ntfs
ntp
nvidia
odbc
openbsd
openntpd
openoffice
openssh
openssl
opteron
parted
partimage
patch
perl
pf
pfflowd
pfsync
photorec
php
pop3
pop3s
ports
postfix
power
procmail
proftpd
proxy
pulseaudio
putty
pxe
python
qemu
r-studio
raid
recovery
redhat
router
rpc
rsync
ruby
saltstack
samba
schedule
screen
scsi
seagate
seatools
sed
sendmail
sgi
shell
siw
smtp
snort
solaris
soundcard
sox
spam
spamd
spf
sql
sqlite
squid
srs
ssh
ssh.com
ssl
su
subnet
subversion
sudo
sun
supermicro
switches
symbols
syslinux
syslog
systemrescuecd
t1
tcpip
tcpwrappers
telnet
terminal
testdisk
tftp
thttpd
thunderbird
timezone
ting
tls
tools
tr
trac
tuning
tunnel
ubuntu
unbound
vi
vpn
wget
wiki
windows
windowsxp
wireless
wpa_supplicant
x
xauth
xfree86
xfs
xinearama
xmms
youtube
zdump
zeromq
zic
zlib