How to clear Windows 2000 and XP account passwords

Yesterday, many machines were changed to the administrator password. This search on the Internet finally found the easiest and most convenient solution.
The first thing we should talk about is not to trust any so-called online collections and cheats. As long as you do not have to operate and practice it yourself, do not trust the so-called online skills. Yesterday is an example, after reading an article, I deleted the Sam file from a computer on the Windows XP system, which made the Computer Unable to start properly. Then I found the real solution, record the methods for clearing Windows 2000 and XP account passwords:
Method summary:

Start with DOS. If the drive C is not partitioned by NTFS, you can use a general boot disk, such as a boot disk of Windows 98, to enter the doscommand line interface, if drive C is NTFS partition, you can find a boot disk with NTFS dos boot system. The XP boot disk of tomato garden usually has NTFS dos tool. The boot disk I used this time is the latest V5 Installation Boot Disk of tomato garden XP. Start the system, go to the command line, and delete the Sam of system32/config in the command line (2000 System) or change a SAM file (XP system) to clear the management account password. Specific operations: In Windows 2000, you only need to delete the Sam file and restart it. Use the boot disk mentioned above to start the system, enter the command line, and enter del C:/winnt/system32/config/sam, then restart. The administrator password is blank and you can log on directly; In Windows XP, You need to delete the Sam file and copy the file with the same name in another directory to completely clear the password. Similarly, use the boot disk to start the system and enter the command line: Del C:/Windows/system32/config/SAM Copy C:/Windows/repair/sam c:/Windows/system32/config/ That is to say, the XP system needs to delete the original Sam file stored in the config directory, and then copy the Sam file in the repair directory to the config directory to solve the problem. Many online tutorials only take the first step, it is actually wrong to follow the Windows2000 method. Then restart. If the administrator password is blank, you can log on directly. However, after the password is cleared, only the Administrator and Guest users are retained.