In the process of using the computer, it is unavoidable to deal with all kinds of passwords, the following nine kinds of passwords may be the most used by everyone: BIOS password, installation password, user password, power management password, screensaver password, boot password, internet password, rating review password and shared password. Today, we will talk about these and we are closely related to the password, this article first nine most commonly used password of the first five kinds of password.
One, BIOS password
The BIOS (basic Input output system), or basic input/output systems, is actually a set of programs that are cured to a ROM chip on the motherboard of the computer, providing the computer with the lowest level and most direct hardware control. Unlike other programs, the BIOS is stored in the BIOS chip, not on the disk, and because it is part of the motherboard, it is sometimes called a name "Firmware" (firmware) that differs from the software and hardware, and is primarily used to store self-diagnostic test programs ( Post program), System bootstrap loader, System setup and I/O drivers for major I/O devices, and interrupt service programs.
If you do not want others to use their own computer, you can set the BIOS password function to add a "lock" to the computer. What should I do if I forget my bios password? Don't worry, here are some tips to help you.
Depending on the user settings, the power-on password is generally divided into two different situations, one is the setup password (in this way, the system can be started directly, but only when entering the BIOS settings required to enter the password), and the other is the system password (in this way, Whether it's a direct boot or a BIOS setup requires a password, no password will accomplish anything. For the user to set the two passwords, our method of cracking is different:
(a) Crack the setup password
If the computer is booting properly, but cannot enter the BIOS settings (that is, Setup password is set), then we have the following options for you to choose:
Method One: Dubug method
After forgetting the password, just start debug in DOS and then manually clear the password by entering the following command:
_ O 70 16
_ O 71 16
In addition, users who are unfamiliar with debug can also download a tool software cmospwd that specializes in decoding CMOS passwords. Then start the program in DOS, it will display the user's CMOS password (cmospwd support Acer, AMI, award, COMPAQ, DELL, IBM, PACKARD BELL, PHOENIX, ZENITH AMI and many other bios), Very convenient to use.
Method two: Software crack
Now there are many detection system or power-on password software, the most common are biospwds, cmospwd and so on. Among them, Biospwds is one of the better one, can detect the BIOS version, BIOS update date, Administrator password, CMOS password, password type, and easy to use, click the "Get Password" button in the window to display all the information detected by Biospwds.
However, because the software crack password, is the BIOS encoded password reverse decoding, so sometimes may find the program password and the real password is not the same, this is normal phenomenon, so this trick sometimes can not be.
Method Three: Self-compiling file hack
Enter the MS-DOS environment, enter edit under the DOS prompt, and return (if you find an error by clicking Edit, which means that you did not edit.com the file, see the Next method), enter:
ALT+179 ALT+55 ALT+136 ALT+216 ALT+230 ALT+112 ALT+176 ALT+32 ALT+230 ALT+113 ALT+254 ALT+195 ALT+128 ALT+251 ALT+64 ALT+1 alt+241 alt+195
Note: Enter the above data first press the ALT key, and then press the numeric keypad (according to the top of the keyboard that row number keys are not function) number keys, lose a number of digits and then release the ALT key, and then press the ALT key. During the operation, a random character appears on the screen, and we don't have to worry about it. Then under the "File" menu, select "Save", Save as Cmos.com file, and then exit into MS-DOS environment, find cmos.com This file, see if he is 20 bytes, if it is not indicated that you entered the wrong, you must re-enter. After confirming, run the cmos.com directly, the screen should not have any prompt information, and then restart the computer to clear the CMOS password, of course, the other CMOS settings will be cleared at the same time, which requires us to reset.
Method four: Dos hack
This method can be completed directly in MS-DOS environment, input in MS-DOS environment: COPY CON CMOS. COM after return, continue to enter the following 10 characters: alt+176 alt+17 alt+230 p alt+176 alt+20 alt+230 Q alt+205 < SPACEBAR, and then press the "F6" key, and then press ENTER to save, After running the cmos.com file, reboot.
_info.asp?id=12392 "Width=1 border=0> (ii) hack system password
If no password can start the computer at all (that is, the system password is set), then we will not be able to use the software to solve the problem of password forgetting. At this point you can use the following methods:
The first trick: universal password
Each motherboard manufacturer has a common password set by the motherboard to facilitate technical support. If we know the motherboard's universal password, either the
Machine, or CMOS settings can be "through the wall into" of course, do not use this to do bad things yo!
Need to note that the motherboard manufacturers for some reasons, different times the general password of the motherboard will be different, so this move does not pass the world, we only have to try a few times, whether useful depends on luck!
Award BIOS Universal Password: j256, Lkwppeter, Wantgirl, EBBB, Syxz, ALLy, AWARD?SW, AWARD_SW, j262, HLT, SER, Sky_fox, BIOSTAR, Alfarome, Lkwpeter, 589721, Awkard, h996, CONCAT, 589589.
AWI BIOS Universal Password: AMI, bios, PASSWORD, HEWITT RAND, AMI_SW, Lkwpeter, A.M.I.
The second trick: CMOS discharge
Most of the current motherboards use button batteries to provide power to the BIOS, meaning that if there is no electricity, the information inside it will be lost. When it is power on again, the BIOS will go back to the original state that is not set, and of course the BIOS password is gone.
Let's open the computer case and find the silver-white button battery on the motherboard. Take care to remove it, and then unplug the chassis rear power plug, with a metal plate short to the battery bottom sitting on the spring plate, about 30 seconds later, then the battery installed.
At this time CMOS will be lost due to power loss of internal storage information, ok! it back, close the chassis boot, the system will prompt "CMOS Checksum error-defaults Loaded", that is to prompt you "CMOS in the inspection of the error, has loaded the system default value" BIOS password cracked successfully.
The third trick: jumper short Connection
If the motherboard CMOS chip and the battery is integrated in a piece, or the battery is directly welded to die on the motherboard, there is the second way we use the "CMOS discharge method", the results do not work, then we will use jumper short to this trick.
After opening the chassis, there will be a jumper switch near the motherboard CMOS battery, which will typically have reset CMOS (reset CMOS), clean CMOS (clear CMOS), CMOS close (CMOS off), or CMOS RAM reset next to the jumper ( CMOS memory reset) and so on, with a jumper cap short, and then jump it back on the line!
Because the jumper settings of each motherboard are not the same, so when using this trick, it is best to check the motherboard manual. Forget to say one thing, in the CMOS discharge or to clear the CMOS data, do not in the case of the system boot, it is recommended to cut off the computer power.
Second, the installation password of Windows
First talk about the installation password. The installation password, which is Windows CDKEY, is required to install Windows and is logged in the registry. Click "Run" under "Start" menu, enter regedit to open the Registry Editor, you will find the installation password of Windows in the following registry location: Hkey_local_machinesoftware
Microsoftwindowscurrentversionproductid and Hkey_local_machinesoftwaremicrosoftwindowscurrentversionproductkey, If you forget the installation password of Windows here, you'll find out. In fact, this password is not important, it is only useful when reinstalling Windows, which is automatically recorded after installation. If you're reinstalling Windows and don't have a password installed, you might want to check it out and record it for later use.
Third, the user password
About the user password, many people have a misunderstanding, that is to say that the user password is the power-on password. In fact, Windows does not have a power-on password in the default case. So what is the user's password for? is used to protect the "personality"! The system allows multiple users to be set up, and is not intended to protect the user's privacy. But for each user to save a set of system appearance configuration, to adapt to different user habits, like the current popular "skin", just to enter a password. So this password does not play a secret role, just a decoration.
The user password can be set in the Password or user tool in the Control Panel: in the Control Panel, double-click the user icon, click the "New" button, the "Add User" window appears, click the "Next" button, enter the newly added user name, and then click "Next" in the window that appears to enter the new user password, Then click on the "Next" button, the "Personalization" window will appear, select the items you need (or you can), and then click the "Next" button again, you can add a new user to the machine. Use the same method for each user can use this machine to create a user name, and then you can enter the password, of course, you can also leave the user to change the password after login.
People who have a little knowledge of Windows know that in a Windows 9X system, the system is not secure. It starts when the power-on or the replacement user logs on, enters the correct password to use the system, but even if does not know the password can also use the ESC key to skip the login procedure, enters the system directly. At this point, we can force the user to enter Windows by changing the registry to require a user name and password at boot time. How to do this: click "Run" in the "Start" menu, enter regedit, open the Registry Editor, open to Hkey_local_machinenetworklogon, then create a DWORD value and name it "mustbevalidated" , the value is changed to 1.
Unlike Windows 9X, Windows 2000 has made a great improvement in this respect, if the system is set to: The user must enter a user name and password to use the computer, then if you do not enter the correct user name password can not enter the system, while the user is divided into managers, users and guests three class, Each has its own different permissions. This provides a means for standardizing the management of computer users.
In addition, users familiar with the Windows 9x system know that the user password information is stored in a file with the extension ". PWL" in the Windows directory. Here's a simple and effective way to protect yourself: Click start → run, enter the Sysedit command, and open the System Configuration Utility. Select the about file System.ini file. At this point you will find an item in its list item titled [Password Lists], which is a link record about the user's password file, where SSJ=C:WINDOWSSSJ. PWL (the "SSJ" before the equal sign is the user name, and after the equal sign is the path and file name of the user's password file). Knowing this, we can modify it to arbitrarily specify the file. For example, you can rename the source file Ssj.pwl in advance and copy it to another directory, as in DOS, execute the command: Copy C:WINDOWSSSJ. PWL c:windowssystems1. Dat. And then the password file in the System.ini to the storage path to SSJ=C:WINDOWSSYSTEMS1. Dat. This way, no one can easily find your password file again.
What happens if you forget the user password for Windows? Rest assured that this will not affect the startup of the system, but it will cause users to not be able to access their personal settings, so it is also necessary to crack Windows startup password to retrieve the lost "personality". To do this, we can remove the * from the Windows installation directory. PWL the password file and all the personal information files under the Profiles subdirectory, and then restart Windows, the system will pop up a password setting box that does not contain any user names, and we do not need to enter anything, just click the "OK" button and the Windows password is deleted. Also, modify the userprofiles under the Hkey_local_machinenetworklogon branch of the registry to "0", and then restart Windows to do the same.
Four, power management password
Windows Power Management can also set a password, set this feature, the system will be returned from the power-saving state to enter a password, after the user does not know the password will not be able to make the computer from the "suspended" state return to normal state, which further guarantee the security of computer data.
To set a password for the Power management feature in Windows 98, follow these steps:
Start button, then select settings → control Panel to start the Windows 98 Control Panel.
2. Double-click the Power Management icon in Control Panel to open the Power Management properties Settings box.
3. Select the Advanced tab from the Power Management properties Settings box.
4. "√" before the "computer exits standby, prompt for password" option.
5. Select the Power Schemes tab in the Power Management properties Settings box.
6. In the "System Wait Status" list box, select the time interval for the computer to automatically start the Power management function after no action (that is, enter the "Pending" status), the main "from 1 minutes after" to "never" and other options, users can choose their own.
7. Set the appropriate time interval for "Turn off monitor" and "Turn off hard disk".
8. Click the OK button to close the Power Management properties Settings box.
This allows us to activate the Power management feature of Windows 98 and set the appropriate password for it. It is important to note that the password for the Windows 98 Power Management feature is based on the user password of Windows 98 itself, which means that we must first set up a user password for Windows 98 before using its power Management password feature, otherwise it will not work. In addition, the Windows 98 Power Management feature does not have a separate password, and its password is exactly the same as the Windows 98 user password, which eliminates the inconvenience of users remembering multiple passwords at the same time. But from another point of view, the power management function of the password is exactly the same as the user password, it will be very insecure, we just follow the previous method to crack the Windows user password, its power management password is also dead.
_info.asp?id=12392 "Width=1 border=0> five, screensaver password
Then say the screensaver password again. Its role is mainly in you temporarily leave the computer, do not want to shut down, but also fear that someone at this time in your computer to see what you are doing or moving your machine, the screensaver password can play a certain role, and it is more than the user password of the word-of-mouth than the user password a little bit better. If the password is not correct, it is difficult to pass.
Let's first look at how the screensaver password is set. First in the blank space on the desktop
Right-clicking and choosing Properties from the shortcut menu opens the Display Properties dialog box, which has background, screen saver, appearance, effects, Web, settings, and six label items in the dialog box, which you can choose from. Click on the "Screen Saver tab" To open the "Display Properties", in the window's "Screen saver" drop-down list box with the various screen savers included with Windows, when we select a certain screen saver, click "Preview" will appear screen saver effect, click "Preview" You can also display it in full screen (click the mouse to restore it). The Settings button sets the display effect of the screen saver, and in the wait spinner you can enter or adjust when the screen saver starts. Even more tempting, the screen saver also has a certain confidentiality function! If you want to be unable to use your computer while you are away, the simplest way is to enable the screen saver password feature, tick the Password protection box, click the Change button, and the Change Password dialog box will appear. Then enter the password two times and confirm it.
If you accidentally forget the screen saver password, what should I do? Do you want to shut it down? That's too savage, and if your work is not saved, it will be naught! Now, as long as you know your machine's IP address, use the following method, your problem will be solved!
In fact, the method is very simple, first in your machine is located in the local area network using another machine as a decoding machine, the IP address of the decoder to your IP address, the use of high-priority hardware conflict principle can make the _blank> operating system Skip screen saver.
The implementation method is as follows:
On this decoder machine, find the "settings" item in the "Start Menu", click "Control Panel", go to "Control Panel", double click the "Network" icon, go to the "Network" dialog box.
Select the Configuration tab, then double-click TCP/IP, go to the TCP/IP Properties dialog box, select the IPs tab, change the IP address of the decoder to your IP address, and click the OK button when you are done.
You are prompted for a new setting to restart your computer to take effect, confirm and restart your computer.
In this way, there are two machines with the same IP address on the LAN. When the decoder starts to complete, on your machine and decoding machine will also pop up "IP address hardware conflict" Prompt box, just click on your machine to determine, guess what will happen? Yes, the system does not require you to enter the screen saver password, directly into the _blank> The desktop of the operating system!
You don't have to worry about forgetting your password, do you? But it is worth noting that throughout the process, to ensure that your machine does not have a request to enter the Screensaver Password dialog box, otherwise determine the hardware conflict, the system will continue to require you to enter the screen saver password.
The system's screen saver password is very fragile. After we forget the password, we just use the "reset" key to force the computer (some well-designed screen savers can even be forced to close with Ctrl+alt+del, which is easier to do), then right-click on the desktop blank and execute the "Properties" command from the popup shortcut menu to open the "Display Properties" Set the box and click on the Screen Saver tab, and finally cancel the password protection option (no need to confirm the password when canceling this option).
Here's a more convenient way to tell you. As you all know, the screen saver password is up to 16 characters. Microsoft built-in 16-byte key: 1D A1 1 B 7A 8C F8. Windows uses the above key to encrypt the password you entered. Its encryption process is: First of all, you enter the password character is converted to its 16 binary Ascⅱ code value (lowercase letters first to uppercase letters), and then in turn with the corresponding key bitwise XOR operation, the resulting 16 binary value of each bit as a character, converted to its 16 ASCII code, And in its tail plus 00 as the end flag, deposited in the registry Hkey_current_usercontrol Paneldesktop under the binary key Screensave_data. So put in the registry of the Hkey_current_userscontrolpaneldesktopscreensave_data primary key under the Windows Screensaver Password cipher text, delete it!
There is also a CD-ROM specifically designed to crack screen-saver passwords on the market. After inserting the disc, it will use the Windows 98 Autorun feature to start the screen saver password cracker saved on the disc, analyze the password of the screen protection function, decipher it, and finally display the password on the screen or write to the floppy disk, which is more convenient.
About the screensaver password there is a worry-some friends always like to tinker computer, often to screen protection set the password, if it is their own home, if it is the school room or street cafes in the computer, it is a bit of trouble. Have this screensaver password trouble friends do not worry, we can screen protection password function to shield off, so that it cannot set the password, so that can solve these problems. Here's how to do this: click "Start" → "Run" menu, enter regedit in the Open "Run" dialog box, return, open Registry Editor, find Hkey_current_ Usercontrolpaneldesktopscreensaveusepassword (if there is no "Screensaveusepassword", create this DWORD value by right-clicking "Desktop", In the pop-up menu, choose "new" → "DWORD value" and name it "Screensaveusepassword", that is, this key determines whether the screen saver uses a password, its key value is 0 or 1, "0" when the password is not set to "1" The default password is used. We'll change the value to "0" to prevent the screen saver from using the password.