here look at this:
Microsoft Windows 2000 Recovery Console
you can get to the Recovery Console by booting with the Windows 2000 Setup floppy disks or to the Windows 2000 CD. The Recovery Console will require you to enter the password for the local administrators account if used on W2K
One of the most powerful features of the Recovery Console in Windows 2000 is the utilities fixboot and fixmbr. If the boot sector gets corrupted, it can be replaced by fixboot.
Use the W2K CD to start your computer. If you have a computer that cannot start up from a CD-ROM, use the Windows 2000 Setup disks instead.
At the Setup Notification screen, press ENTER to continue.
At the Welcome to Setup screen, press R to select the option to repair a Windows 2000 installation.
When prompted to choose the type of repair or recovery option required, press R to repair a Windows 2000 installation by using the Emergency Repair Process.
Choose the type of repair option you want to use:
Press M for Manual Repair.
Press F for Fast Repair.
The Recovery Console is a console program can be launched after the Startup Setup version of the Windows 2000 operating system is booted. It is a console program that can be used to discover and fix system issues. Under the Recovery Console, you have access to the following commands:
attrib: change attributes of files
+ sets an attribute whereas - removes an attribute
r readonly attribute, s system file attribute, h hidden file attribute, c compressed file attribute
batch: execute commands specified in a text file
batch inputfile [outputfile]
where inputfile specifies text file that contains list of commands to be executed
cd: change directory operates within the system folders
chkdsk: checks parition and fixes errors
cls: clear screen
copy: copy a file; wildcards or folder copies are not allowed
del: delete a file; wildcards are not allowed
dir: displays a list of files or folders
disable: disable W2K service or driver
diskpart: manage the partitions on HD
enable: enable W2K service or driver
exit: quit the Recovery Console
expand: expand a compressed file
fixboot: write new boot sector on boot partition
fixmbr: repairs new master boot sector
format: formats a specified drive
listsvc: lists all available services, drivers, and startup types
logon: if 3 attempts to logon do not succeed, the console quits and computer restarts
map / diskpart: map & twiddle with partitions - view, create, and remove partitions
md: make folders
more: displays a text file to the screen
rd: only operates within the system folders
ren: rename a file
set: display or modify four environment options
AllowWildCards=False
AllowAllPaths=False
AllowRemovableMedia=False
NoCopyPrompt=False
systemroot: change hd root
Ok if you do ever get this sorted or if u have to reinstall you need to make what is called an ERD (emergency repair disk)
just go to the run box and type: ntbackup
then follow the prompts, with an erd, which will back up most all system files and place a link to a reg back, and with the recovery panel you have one easily recoverable OS
just update the ERD after each system change, its one floppy, and never worry
good luck