5 ways to unlock windows power-on login password

Method 1, on power-on, press F8 to enter "Security with Command Prompt" mode

Enter "NET user+ username +123456/add" to force a user's password to be set to "123456″ Method 2, press (F8) and select (safe Mode with Command on computer startup Prompt)

2. After the election (administrator) will jump out of the (command prompt) window

3. Add a user with (net) command, example: Add a user name of alanhkg888, command syntax as follows:

NET user Alanhkg888/add 4. Increase the number of new users to the power of the administrator, for example: to enhance the power of the user alanhkg888 just now, command syntax is as follows

net localgroup Administrators Alanhkg888/add 5. After completing the above steps restart the computer, in the splash screen will be added to a user alanhkg888, select the alanhkg888 into

6. After the login (console)→(user account)→ Select users forget the password, and then select (remove password) (etc)

7. Select the original user in the login screen without the need for a password to be inferior (as removed)

8. Delete the newly added users, in (console)→(user account)→ Select (alanhkg888), and then select (remove account) can be Method 3, restart Windows XP, in the instant after the splash screen, press F8, select "Safe Mode with command line" run.

2. When the run process stops, the system lists the root selection menu for the Superuser Administrator and local user owner, and clicks on the administrator to enter command line mode.

3. Type the command: "NET user owner 123456/add", which will make it mandatory to change the owner's password to "123456″." If you want to add a user (for example, a username of abcdef and a password of 123456), type "NET user abcdef 123456/add" and add "net localgroup Administrators Abcdef/add" command to promote the user to the System Administration group Administrators user with super privileges.

4.DOS, delete windowssystem32config inside the SAM file.

5. Press the keyboard's delete key to enter the BIOS interface after power-on. The user password option is found, which defaults to the shutdown state. Start and enter the user password (1~8, English or digital). Computer prompts please input again to confirm the password is correct, save exit after restarting the machine, then will be on the power-on when the password menu method 4, if it is FAT32, enter the DOS, delete c:winntsystem32configsam*.* on it. Login As long as the administrator does not lose the password can be. Then create a new one. If NTFS is not valid

In addition, if your system has not been added to Microsoft's Input method patch can also use the input method to do a loophole to do an administrator rights account,

The specific methods are as follows:

After the boot, Win2000, the login window appears, display the user name, and require a password (of course, you will not have a password).

At this point, please place the input focus on the user name, and use Ctrl+shift to toggle the Input method (just select one, as long as the input tool bar can appear on the line). Right-click on the Input ToolTip toolbar that appears, and select Help, and a Help window pops up. Next you need to find a (green underlined) hyperlink in this window, and with shift+ left mouse button click, open it will pop up an IE window, please enter C in the window address bar:, to this step you should be very clear how to do.　　Just click on the standard button "up", you will find that you can go into the "Control Panel", you can go straight to the "User and password" then what happened only you know. Method 5, we know that during the installation of Windows XP, the first is to log on by default with "Administrator," and then ask to create a new account to log in using this new account when you enter Windows XP, and in Windows XP login interface will only be created this user account, no "administrator", but in fact the "administrator" account still exists, and the password is empty.