Windows 2000 Log on Problems

See if this helps

Most of these are bootable floppies that give you a backdoor to the SAM registry hive and allows you change the admins password.

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Free stuff

Instructions
This is a utility to (re)set the password of any user that has a valid (local) account on your NT system, by modifying  the crypted password in the registrys SAM file.
http://home.eunet.no/~pnordahl/ntpasswd/bootdisk.html
image files
http://home.eunet.no/~pnordahl/ntpasswd/bd040116.zip (~1.1MB) - Bootdisk image, date 040116  
http://home.eunet.no/~pnordahl/ntpasswd/sc040116.zip (~1MB) - SCSI-drivers (040116)
http://home.eunet.no/~pnordahl/ntpasswd/cd040116.zip cd040116.zip (~2MB) - Bootable CD image with same version and drivers as floppies above.
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Another one
Change administrator password on NT/2000, without knowing it!!! Bootdisk...
http://www.thomasmathiesen.com/itak/html/software.html
image file
http://www.thomasmathiesen.com/filez/sw/external/linuxbootimage.zip
image writer
http://www.thomasmathiesen.com/filez/sw/external/imagewriter.zip
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Another one
Offline NT Password and Registry Editor
http://www.pc-pipeline.com/modules.php?op=modload&name=Downloads&file=index&req=viewdownload&cid=3

Download it here
http://www.pc-pipeline.com/modules.php?op=modload&name=Downloads&file=index&req=getit&lid=6

Run it to create a boot floppy then follow the instructions. If you choose to do this then you are doing this at your own risk. Just change the admin pw and login then change the account pw's that you desire.

Make sure you have a floppy disk in the floppy drive and let the program create the boot floppy. Now restart the machine a let it boot from the floppy. Now follow what it instructs you to do.

Use it like a bootdisk.

Another one
NTFS/FAT Boot disk for password recovery/reset
http://www.pchelplive.com/modules.php?name=Downloads 
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NTAccess can replace the administrator password of a Windows XP, Windows NT or Windows 2000 system by rebooting the computer with a special set of boot disks or CD-ROM (XP only). This is useful if you forgot the administrator password and cannot access the Windows XP/2000/NT system.
http://www.sunbeltsoftware.com/product.cfm?id=265


The Password Auditing and Recovery Application
http://www.atstake.com/research/lc/index.html

L0phtCrack, The integrated password cracker for NT
http://www.securiteam.com/tools/L0phtCrack__The_integrated_password_cracker_for_NT.html

ERD Commander
http://www.winternals.com/products/repairandrecovery/erdcommander2002.asp

When your server or workstation won't boot, you need ERD Commander 2003. ERD Commander 2003 boots dead systems directly from CD into a Windows-like environment. You'll have full access to the dead system's volumes, so you can diagnose and repair problems using tools located on the ERD Commander 2003 Start menu. And you'll have built-in network access to safely move data off of, or on to, the dead system. The Locksmith utility allows you to quickly reset the Administrator password on locked-out systems. With ERD Commander 2003 you can repair a system quickly and easily, saving you time and rescuing your critical data.
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Or you could, if you have a FAT32 file system, just boot to a Win98 bootdisk and rename the SAM file (registry Hive) in the C:\WINNT\system32\config folder to something else. Of course this will remove all accounts on the system and you will need to rebuild them. If you are using NTFS then boot to the Win2000 or XP CD and do this from the Recovery console.

For XP
Windows XP Tip: Password Recovery Disk
Take preventive measures against losing user-level passwords
http://www.techtv.com/callforhelp/answerstips/story/0,24330,3356093,00.html


The Crazy One