xp开机密码忘了怎么办（XP password forgot how to do）

xp开机密码忘了怎么办（XP password forgot how to do） xp开机密码忘了怎么办(XP password forgot how to do) Forget the windows login password 9 solutions, which can be all the methods, but there is no vista. If you are a very easily forgotten, so don't forget to create a startup disk to restore Windows XP account password in the password the first time at the same time, it can let you avoid hard disk trouble. From the "control panel" found in the "user account", select their own account access control interface as shown in the figure, we can see a "stop a forgotten password" on the left side of the task list, click the "forgot password can open the wizard, the wizard will be prompted to insert a formatted a blank disk, in the process of operation will let you enter the account password, can quickly create a password reset disk. Later, when we forget when the account password, without the use of "Welcome screen" login case login to the Windows XP, press Ctrl + Alt + Del key combination, "Windows" window, click the options in the "change password" button, the window appears to change the password. In this window, the current user's password backup, click on the bottom left corner "backup" button, activate the "forgot password Wizard", according to the prompt to create a password reset disk. If the wrong password has been entered in the Windows XP login window will pop-up "login failed" window, if you do what is not up to your own password, you can click the "reset" button to start the password reset wizard, by just creating a password reset disk, you can use this password change the password reset disk and boot the system. Reset your password and log in to Windows XP. "Create a password reset disk", containing a certain risk, because anyone can use this a password reset disk to login Windows XP, can enter the user account in the name of the user, the user can operate all the real operation, it must be "password reset disk" keep in place, to prevent loss or leakage. Method 1 - use the "Administrator" (this method applies to the administrator user name is not "Administrator") We know that the installation of Windows XP process, the first is the "Administrator" default login, then create a new account to enter Windows XP using this new account login, but also in the Windows XP login screen will only appear in the user account creation, not a "Administrator", but in fact the "Administrator" account still exists, and the password is empty. When we understand this, if you forget the password, the login screen, hold down the Ctrl+Alt key, and then press the Del button two times, can appear the classic login screen, then type the user name "Administrator", enter the password is empty, and then modify the password "zhangbp". Method 2 - delete the SAM file (note that this method is only applicable to WIN2000) Windows NT/2000/XP in the security management of the user account using a security account manager (Security Account, Manager, SAM) of the management mechanism, security account manager on account is carried out through safety signs, safety signs in the account creation is also created, once the account is deleted, security identification also deleted. Security identifiers are unique, even when the same username is created, and each time they are created, the security labels are completely different. Therefore, once an account is rebuilt by the user name, it will also be given different security labels and will not retain the original permissions. The specific performance of the security account manager is the%SystemRoot%system32configsam file. The SAM file is the user account database of Windows NT/2000/XP, and the login name and password of all users will be saved in this file. I know that, Our solution also came from: deleting the SAM file, starting the system, and it will rebuild a clean, clean SAM, which naturally has no password. However, such a simple approach is not applicable to XP, and Microsoft may be limited to BUG...... So now in the XP system, even if you delete the SAM, or can not delete the password, but will make the system boot initialization error, and then into the dead loop and can not enter the system!! Method 3 - find the password from the SAM file...... You can use the DOS basic command Before the system starts, insert the boot disk and enter: C:WINNTSystem3Config copies the SAM file to the floppy disk with the COPY command. Get another machine to read. Here the tool is LC4, run LC4, and open a new task, and then click IMPORT to Import from SAM file "has to be cracked, open the SAM file, then LC4 will automatically analyze the file, and displays the file name; click the" Session - Begin Audit ", you can start crack password. If the password is not very complicated, it will get results in a very short period of time. Method 4 - overwrite with other SAM files (if you can get the SAM file of another computer and its password)...... Personally think it is the most feasible way 1 - as mentioned above, the SAM file holds the login name and password, so we just replace the SAM file is to replace the login name and password. However, the "origin" hard disk partition format of this replacement SAM file should be the same as your system (see FAT32 or NTFS, you can confirm it yourself). The "origin" of the best system there is no password, security settings did not move (in fact, most of the personal computer are like this, of course, more insurance) way is to put all the files of the XP [Win NTSystem 32Config] [C:Win NTSystem 32Config] to cover the directory in your XP installation (assuming the default partition in C:), 2, if not to help other people (I mean "if"), you can in the other partition in the installation of a XP system, hard disk partition format to the same, and please pay attention to your original XP and must not be installed on the same partition! Before starting, must advance the backup boot MBR, there are many methods to backup MBR, using software tools, such as antivirus software, such as KV3000. Installed after landing with Administrator, and now you have absolute write permission to the original XP, you can test the original SAM down, using 10PHTCRACK to get the original password. Can also put all the files newly installed XP Win NTSystem 32Config C:Win NTSystem to cover the 32Config directory (the original XP erection installation here), and then use KV3000 to restore the previous and master boot MBR, you can use the Administrator identity on XP now. [2, I think I'm in trouble, or number 1: it's better to ask someone else for help...... ] [in addition, said C:windows epair of the SAM directory is the original version, you can use it to cover the SAM system32, so you can now delete the password, and returning to the starting when installing the system password. If the password is empty, isn't it?...... ] Method 5 - use Win 2000 to install CD boot repair system (premise)...... Is that obvious? You have to have a Win 2000 CD installed Use the Win 2000 installation disc to start the computer in the Wndows2000 installation, repair selection interface Windows 2000 (press R); then, choose to use fault repair console (press C), the system will scan the current version of the Window2000/XP. There is only one operating system, so only a login selection (l:C:\Windows) is listed. From the keyboard, press L, and then enter, this time, Window XP does not require the input of the administrator password, but directly logged into the recovery console mode (if you are using Windows XP to start the installation cd, That's the password for the lost administrator. Here it refers to the administrator is a system of the built-in Administraor account) familiar with Windows friends all know, the recovery console which can be any system level operations, such as copy, move, delete files, start and stop service, even formatted, re partition of destructive operation. Test using CD: integrated SP3 Windows 2000 Proessional simplified Chinese version. Test passed system: Windows XP Proessional, hit SPI patch of Windows XP (FAT32 and NTFS file system is the same) [note that due to various reasons, some of the Windows 2000 installed on the market can not show the fault console login options, so can not use this vulnerability. At the same time, due to the limitations of the failure console model itself, the vulnerability can not be exploited from the network, in other words, this vulnerability is limited to single machine. ]