How to clear the system administrator administrator password

                                                                                                                                                                                         

Sometimes we always want to completely delete the administrator password of the windows
system, because it is very troublesome to enter a long string of administrator usernames and passwords before booting, because < u>Computer
There are always a lot of programs to load before booting, so it will take longer to add the username and password. The following will teach you how to cancel the administrator password;

Clear the administrator password. First configure CONFIG Delete the SAM file. Then copy the SAM file under the REPAIR directory to CONFIG. The password can be entered. The first thing we need to understand is what is the repair folder? He is located under C:\\WINDOWS. When we A login that is stored when the system is initially installed. When the corresponding file under C:\\WINDOWS\\REPAIR is placed under C:\\WINDOWS\\CONFIG, we can create a login configuration file that can be used to start Windows XP. This login configuration file records the basic state of the system at the beginning. For all changes that are generated in the future, it is impossible to store it. Because during the system installation, the default administrator account The password is empty. So we can log in with a blank password. This is indeed possible. After my experiment was successful. But we need to copy the five files of software, system, security, default and sam. It's just a SAM file (the author only copied one and entered the system, I think it can only be said to be lucky. Or the hardware information of his computer
has never changed greatly) Your hardware information and some software information. If your hardware or software has a lot of changes, I think. The possibility of not being able to log in is very large. Disadvantages: This method has been given by Microsoft officials. Everyone is here. Don't remember the password. You can use this to try. Of course. The disadvantage of using this method is obvious. Because it is the state when the system is installed. This time. Maybe your sound card driver is not installed yet. The graphics card needs to be re-installed. Configuration. It may be necessary to install some drivers. Most of the optimizations you have configured for the system will disappear. For example, the settings in the advanced system properties. Virtual memory settings. Service startup settings.. etc. Control surface Most of the program display will be lost in the add-and-remove program on the board (depending on how much software you have installed during system installation). Most of the programs will run normally. A small amount of software needs to be reinstalled. Especially for programs loaded in service mode, such as Kaspersky, etc. So it can be much better if you can solve it with the method described in my other post.

Let's talk about this operation. The steps. (This can be found in Microsoft's knowledge base) If you have dual system and another system can enter normally, it will be very simple. Just need to use the software under c:\\windows\ epair, Copy the five files of system, security, default and sam to c:\\windows\\system32\\config. Overwrite the original file. Restart it. http://www.bcua.cn

If there is no dual system If the C drive is FAT32, it can be directly operated under DOS. If it is NTFS, it can also be implemented with a tool that recognizes the NTFS partition. For example, NTFS FOR DOS. Then perform the following operations

Delete c:\\windows\\system32\\config\\system delete c:\\windows\\s Ystem32\\config\\software delete c:\\windows\\system32\\config\\sam delete c:\\windows\\system32\\config\\security delete c:\\windows\\system32\\config\\default

copy c:\\windows\\ Repair\\system c:\\windows\\system32\\config\\system copy c:\\windows\ epair\\software c:\\windows\\system32\\config\\software copy c:\\windows\ epair\\sam c:\\windows\\system32\\config\\ Sam copy c:\\windows\ epair\\security c:\\windows\\system32\\config\\security copy c:\\windows\ epair\\default c:\\windows\\system32\\config\\default

Here is a suggestion for everyone For those who often forget the administrator password, you can do this. Clear the password of the administrator first. Then make a backup of the five files of software, system, security, default and sam under c:\\windows\\system32\\config. Add one note: If you have dual systems, please go to another system to back up the files of this system. If not, you can back up under DOS. Because these are always used in WINDOWS runtime. The system of the file will not allow you to copy these files, cut a class of work The backup is where you want. You can also directly overwrite the file under c:\\windows\ epair. In this case, when you forget the password, you can recover it by the above method. And because it is the most recent backup. In other words, when you restore, the software and settings installed on your computer will be the same as when you backed up. This will minimize the loss. Of course, everything has a good side and a bad side. People can also use the above means to enter your system. And it is estimated that you will not know. Because after all, you are not the usual administrator login account. And the administrator account is not displayed in the login interface by default. http ://www.bcua.cn

After logging in with the administrator account, open CMD. Enter the command in it: net user Your original administrator username "new password" Then enter. You can Force your original user's password to a new password. You can also force a password change in a computer-managed user.

When you log in, you will be in the c:\\documents and settings folder. Move to form a folder named administrator.computer_name. There is also a folder named administrator in this folder. The .computer_name behind the previous folder is to distinguish it from the administrator file. We only need to restart. Log in with the administrator account after changing your password. Then delete the administrator file. Rename the administrator.computer_name to administrator.

The last step. Set a strong password for your administrator. OK