There is a BIOS password, what should I do? How to remove bios password on PC or laptop
To increase the security of your data on your computer, you can install an antivirus, a login password, and use many other methods. If you are very concerned about security, then you can set a password on the BIOS, another method to increase the security of information from unauthorized access. So, how to set a password on the BIOS?
If anyone doesn't know, then BIOS– an input/output system, which is a microprogram located on a chip, which in turn is soldered to the system board. All important computer parameters are stored there, for example, date and time, disk and tire parameters, and indeed all PC components. When you start a computer, the BIOS always starts the POST procedure, during which all components of the computer are checked for serviceability; the appropriate ones may be responsible for this.
There are two ways to set a password in the BIOS - on Windows and on the BIOS itself. Well, let's go.
This is interesting:
How to set a password when logging into the system through BIOS?
First of all, you need to go into the Bios, read how to do this, each laptop model and motherboard has its own key combinations. If you don't find it, read the information in the motherboard manual. I’ll say right away that for many models the characteristic keys for entering the BIOS are DEL, F8, F1, etc.
Then save the BIOS settings by pressing the key F10 or using the item "Save & Exit Setup".
After the reboot, you will see a field for entering a password and when you enter it, the system will continue loading.
If you do not have a regular BIOS, but more, then setting the password is similar to the first method. We are looking for an item related to the password for User.
How to set a BIOS password?
Now let’s move on to the issue of setting a password on the BIOS, so a fraudster will not be able to get in there and spoil the computer’s settings. It can increase the frequency of the CPU, RAM, and without knowledge, even burn out any of the components. This rarely happens, but it's better to be safe.
We go into the BIOS and look for the parameter there, or maybe the item.
This article is about how to reset the BIOS to factory settings. This becomes necessary if you have changed something yourself. This could lead to the following consequences: unstable operation of the computer (PC)/laptop, inability to turn on the PC/laptop, black screen loading the operating system, unknown password to enter the BIOS setup and many others.
Resetting CMOS memory using hardware
Let me remind you that the BIOS is built on CMOS technology (complementary logic on metal-oxide-semiconductor transistors).
Turn off your computer/laptop. Unplug the power cord. Disconnect the battery (for laptop). Next, we open the system unit / disassemble the laptop, because we need access to the motherboard. We find the battery on the motherboard CR2032, which looks like this:
Fig.1. Battery CR2032, 3 Volt
Next to this battery we find a switch that is labeled Clear CMOS,CL_CMOS , CRTC , CCMOS , CL_RTC etc. The names of the switches may vary. A 2-pin or 3-pin header with a jumper installed in it can also be installed. On laptops, the switch can be installed under the battery itself. This is roughly what they should look like:
Fig.2. CR2032 and next to it a 3-pin connector for a jumper, which is labeled on the motherboard as CLRTC
Fig.3. CR2032 and next to it a 3-pin connector for a jumper, which is labeled on the motherboard as CCMOS
Another name for this jumper is Jumper. Jumper(English) jumper) - a jumper that allows you to set the operating mode of the device by closing (opening) several contacts. In our case, the jumper can be connected to a place with 2 or 3 contacts (they are also called pin(from English Pin)). To reset the CMOS memory (return the BIOS to factory settings), you need to close these contacts with a jumper for a couple of seconds, i.e. put it on 2 contacts (with a 2-pin configuration) or move it to position 2-3 from position 1-2 (with a 3-pin configuration).
General method. Using switches, jumpers or buttons. To reset the BIOS or clear the CMOS memory:
1. Switch the switch for a few seconds, or remove, install, switch the jumper to another position.
2. Press the power button of the system unit. The computer will start working but the screen may remain black.
3. Turn off your computer. Replace the jumper or reset the switch to its original state.
4. Turn on your computer.
5. Login BIOS Setup and check all settings.
Fig.4. BIOS reset switch named SW1
Fig.5. BIOS reset button called clr CMOS
If the Clear CMOS switch is missing on the motherboard, or you did not find it, you need to do the following:
1. Remove the CMOS battery from the motherboard.
2. Close the contacts in the battery socket, for example with a screwdriver, to remove residual voltage in the CMOS memory power supply circuit.
4. Return the battery to its place.
5. Turn on your computer.
6. Enter BIOS Setup and check all settings.
A note about Intel motherboards. The methods described above are suitable for most motherboards, with the exception of Intel models. If you are the owner of products from this company, to reset passwords, find the so-called BIOS Configuration Jumper(BIOS configuration jumper) and move it from position 1-2 to position 2-3. Close the lid and supply power to the system unit and monitor, then turn on the computer - it will automatically load the utility BIOS Setup in configuration mode. The main difference is the additional Maintenance item (Fig. 3), which contains, in particular, the option to delete all passwords Clear All Passwords. By selecting it, you will reset forgotten passwords. After this, you need to save the changes made (for example, by clicking and confirming your intentions), turn off the power of the computer, disconnect it and all peripherals, open the system case and return the BIOS configuration jumper to its initial position 1-2. To reset all BIOS settings, remove the batteries for 10-15 minutes.
Fig.6. Maintenance Menu Intel BIOS
Resetting CMOS memory using software.
This can be done using the Windows debugger. The procedure is as follows:
Start -–> All Programs --–> Accessories --–> Command Prompt (for Windows Vista and Windows 7 right click on snooze Command line and choose Run as administrator). When the window opens, enter debug and press Enter. Further commands depend on the BIOS manufacturer. After entering each line you need to press Enter.
Award BIOS:
-o 70 17
-o 71 17
-q
AMI BIOS:
-o 70 10
-o 71 0
-o 70 11
-o 71 0
-q
BIOS Phoenix:
-o 70 ff
-o 71 17
-q
On some boards, the BIOS password is reset and factory settings are loaded if you hold down the key when turning on Ins, Ctrl+Alt+Del+Ins, X+~.
Engineering passwords
If all else fails, then use well-known passwords from the manufacturers themselves.
AWARD BIOS.
v2.50: AWARD_SW, j262, TTPTHA, 01322222, KDD, ZBAAACA, aPAf, lkwpeter, t0ch88, t0ch20x, h6BB, j09F, TzqF.
v2.51: AWARD_WG,j256, BIOSTAR, HLT, ZAAADA, Syxz, ?award, 256256, alfarome, SWITCHES_SW, Sxyz, SZYX, t0ch20x
v2.51G: g6PJ, j322, ZJAAADC, Wodj, bios*, biosstar, h6BB, HELGA-S, HEWITT, RAND, HLT, t0ch88, zjaaadc
v2.51U: 1EAAh, condo, biostar, CONDO, CONCAT, djonet, efmukl, g6PJ, j09F, j64, zbaaaca
v4.5x: AWARD_SW, AWARD_PW, 589589, PASSWORD, SKY_FOX, AWARD SW, award.sw, AWARD?SW, award_?, award_ps, ZAAADA
AWARD BIOS. AMI, AMI_SW (set when resetting BIOS SETUP), SER, A.M.I., aammii, ami.kez, ami, amiami, AMI!SW, AMI.KEY, AMI?SW, AMISETUP, AMI~, AMIPSWD, amipswd, helgaYas, bios310, amidecod, BIOSPASS, CMOSPWD, HEWITT RAND, KILLCMOS
Engineering passwords from other BIOS manufacturers:. AMPTON BIOS – Polrty; AST BIOS - SnuFG5; BIOSTAR BIOS - Biostar ,Q54arwms; COMPAQ BIOS - Compaq; CONCORD BIOS – last; CTX International BIOS - CTX_123; CyberMax BIOS – Congress; Daewoo BIOS – Daewuu; Daytek BIOS – Daytec; DELL BIOS - Dell; Digital Equipment BIOS - comprie; Enox BIOS - xo11nE; Epox BIOS – central; Freetech BIOS – Posterie; HP Vectra BIOS – hewlpack; IBM BIOS - IBM, MBIUO, sertafu; Iwill BIOS – iwill; JetWay BIOS - spoom1; Joss Technology BIOS - 57gbz6,technolgi; M Technology BIOS – mMmM; MachSpeed BIOS - sp99dd; Magic-Pro BIOS – prost; Megastar BIOS – star; Megastar BIOS - sldkj754,xyzall; Micronics BIOS - dn_04rjc; Nimble BIOS - xdfk9874t3; Packard Bell BIOS - bell9; QDI BIOS – QDI; Quantex BIOS - teX1,xljlbj ; Research BIOS - Col2ogro2; Shuttle BIOS - Col2ogro2; Siemens Nixdorf BIOS - SKY_FOX; SpeedEasy BIOS - lesarot1; SuperMicro BIOS - ksdjfg934t; Tinys BIOS – tiny; TMC BIOS – BIGO; Toshiba BIOS – Toshiba, 24Banc81, toshy99; Vextrec Technology BIOS – Vextrex; Vobis BIOS - merlin; WIMBIOSnbsp v2.10 BIOS – Compleri; Zenith BIOS - 3098z, Zenith; ZEOS BIOS – zeosx;
When working with laptops, it can be problematic to disconnect the CMOS memory battery or use a jumper, since neither one nor the other may be explicitly present. The battery can be designed with a CMOS memory chip. Yes, and disassembling a laptop is not always possible. In such cases, you can use master password generators based on service tags (codes shown when the password is entered incorrectly three to five times) or the laptop serial number. They will be discussed in other articles.
That's all! Thank you for your attention and see you again on the pages of the site site
The most common method that most of us know to reset or clear the BIOS password is to physically power off the computer by unplugging all cables and removing the battery from the motherboard for a few minutes.
Another way how to remove bios password— switch the CMOS jumper on the motherboard itself, if present. These methods work because most PC motherboards and a number of laptop motherboards use a battery to maintain BIOS/CMOS settings. If you turn off the power, the BIOS/CMOS settings and password will be deleted.
If for some reason you can't reset your computer's BIOS security password by removing the battery or toggling the CMOS jumper, here are a few options to try.
Default backdoor passwords
Before using tools that try to reset or make changes to the BIOS, it's worth seeing if any of the known backdoors or default passwords are working. Click the link below to view a list of all known backdoor passwords. Before you remove the BIOS password on your laptop, please note that passwords are case sensitive.
Standard BIOS backdoor passwords
If you can boot Windows
CMOS De-Animator is a more advanced tool than most tools. It can reset BIOS password from Windows. The latest version of CMOS De-Animator 2 is compatible with both 32-bit and 64-bit operating systems.
All you need to do is run the tool as administrator ( right click and select menu item " Run as administrator» ) and press the button " Continue", and then restart the computer. When the PC boots, you will see a CMOS checksum error and will be able to access the BIOS without a password. The way CMOS De-Animator works is that it invalidates the checksum CMOS memory system. This resets all settings to default and clears all stored BIOS passwords.
CMOS De-Animator includes backup and restore functionality. This provides an additional guarantee of safety. If something goes wrong when resetting passwords, the data is saved to a file with a .dea extension. The authors of the program warn about possible problems when using it on laptops. The program sometimes causes antivirus software to cause false positives and warnings on sites such as Virus Total.
If you can't boot from your hard drive or CD
How to remove BIOS password on Samsung laptop? Turning off the power and removing the battery from the motherboard of desktop computers for a few minutes should remove the BIOS password. But this is much less likely to work on a laptop. For added security, laptop BIOS passwords are typically stored on a separate EEPROM chip that is independent of the BIOS battery.
If you enter the wrong BIOS password on your laptop several times, a message will appear on the screen indicating that the laptop is locked. You will see something like “ System Disabled" or " Password check failed. System Halted” and a few numbers. If this message appears when entering the BIOS, you can simply turn off the power and then try to enter again. Pay attention to the number because it is valuable information. It is required to generate a backdoor BIOS password.
All you need to do is write down the number that appears and then go to the web page BIOS Master Password Generator. This site is designed to retrieve possible passwords based on the entered number. Just enter it and click the button. Then check the results and mark all the passwords that are close to your laptop model.
Before you remove the BIOS password on your computer, try the received codes for a locked BIOS to check if it works. Depending on your laptop model, you may need to press Enter or Ctrl + Enter after entering the code. The codes used are based on the work of a specialist " Dogbert", who did a lot of research and created a number of small utilities, as well as Python scripts for unlocking various laptop models.
If the codes you received on this site did not help you, visit Dogbert's blog, where you can find more detailed information about the brand of your laptop and download a separate utility for it. To use one of the programs, download the utility and run it, then enter the number and press Enter. You will receive a master password with which you can try to unlock your computer.
You need to run a master password on a computer that can boot to Windows and that has .NET installed. If you don't know which tool to use, you can try everything until you find the one that suits your laptop.
If you can boot from CD/USB
When Windows does not boot properly and there is no way to log in or USB is already set to a higher priority. In this case, you need to insert a CD or flash drive and the device will boot from it automatically. Also, booting from a CD or USB drive may have a lower priority than hard drives. In this case, you will need to temporarily disconnect the hard drive.
How else can I remove the password through the BIOS? If you have access to Windows, another solution that allows you to boot from CD/USB is a tool called Plop Boot Manager. It makes it possible to boot from these media even if the BIOS does not support this feature.
Here are some tools you can use when booting from a CD or USB flash drive.
PC CMOS Cleaner
Designed to recover, delete, decrypt and display the user or super user password stored in the BIOS, regardless of the device brand. Supported BIOS include Award, American Megatrends (AMI), Compaq, Phoenix, Samsung, IBM, Compaq, DTK, Thinkpad, Sony, Toshiba. So there's a good chance that your BIOS is included in this list. PC CMOS Cleaner is a bootable Linux CD, so you don't have to worry about operating system compatibility.
When launched, the program will first try to decrypt and display a list of possible passwords. If that fails, you can remove the password using two options, the second of which will completely reset the BIOS settings to default - you'll have to reconfigure them later.
Download PC CMOS Cleaner
CmosPwd by CGSecurity
This is one of the most modern and popular CMOS decryption tools, although it was released quite a long time ago - in 2007. CmosPwd decrypts the password stored in CMOS and displays it. The following BIOS are supported:
- ACER/IBM BIOS ;
- AMI BIOS;
- AMI WinBIOS 2.5;
- Award 4.5x/4.6x/6.0 ;
- Compaq (1992);
- Compaq (new version);
- IBM (PS/2, Activa, Thinkpad);
- Packard Bell;
- Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107;
- Phoenix 4 release 6 (User);
- Gateway Solo – Phoenix 4.0 release 6;
- Toshiba;
- Zenith AMI.
With CmosPwd you can also remove BIOS password on Lenovo laptop, backup, restore, erase or even completely clear CMOS. When loading, select 9. Next- 2. BIOS / CMOS Tools- 2. BIOS Cracker 5.0 (cmospwd). There is also a version that can be run from Windows.
!Bios from Eleventh Alliance
Allows you to perform BIOS backup and restore. There's even a Blaster option that can wipe certain parts of the BIOS with the expectation of removing the password - a powerful and potentially unsafe option as it can corrupt the BIOS. !Bios can crack passwords used in some common BIOS versions, including various versions of IBM, American Megatrends (AMI), Award, and also Phoenix. This is an old tool, dating back to the late 90s, so it is unlikely to work effectively on modern computers.
Despite the fact that BIOS is a powerful security tool; there are ways to bypass the password set in it.
Sometimes curious users or those trying to protect their data as much as possible set passwords on everything they can, but they often forget these passwords. Forgetting your BIOS password is hard to bear ( system boot password), this can often lead to the purchase of a new motherboard, but this can be avoided by taking advantage of the weaknesses of the computer architecture and the “back doors” deliberately left by the developers.
Method 3 - Engineering password
Consists of entering instead of a forgotten password BIOS engineering password for this motherboard:
| AWARD | |
|---|---|
| _award | Condo |
| 01322222 | d8on |
| 589589 | HLT |
| 589721 | J262 |
| 595595 | J332 |
| ALFAROME | J64 |
| Ally | Lkwpeter |
| ALLY | LKWPETER |
| aLLy | Pint |
| aPAf | PINT |
| AWARD PW | SER |
| AWARD SW | SKY_FOX |
| AWARD_SW | SYXZ |
| Awkward BIOSTAR | TTPTHA |
| CONCAT | ZJAAADC |
| AMI | |
|---|---|
| A.M.I. | CONDO |
| AAAMMMMIII | HEWINT RAND |
| AMI | LKWPETER |
| AMI?SW | PASSWORD |
| AMI_SW | SER |
| BIOS | |
However, it is worth remembering that these passwords only work on BIOS versions 4.55G and below ( motherboard class up to i845P chipset).
Method 4 - Let's remember the old days
Another password reset method is to use the DOS environment. To do this you need to boot into the environment DOS(clean DOS, and not emulated from under Windows) and enter the following commands:
* AWARD And AMI BIOS:
DEBUG
-O 70 17
-O 71 17
Q
* Phoenix BIOS:
DEBUG
-O 70 FF
-O 71 FF
Q
In addition to this method, there are programs for determining or resetting the password BIOS from the OS environment. For example: amikrack.exe and awardcrack.exe and others, but to use them you need to have access to the OS, which is problematic if there is a password for further downloading after testing the PC hardware.
Every time an HP notification arrived, there was a problem with resetting the password. So I'll just leave this here :)
The second method is more universal, effective, but also dangerous. I will warn you in advance that before using it you should save all information about the laptop (serial number, UUID, etc.) which can be viewed by pressing F1 when loading the laptop. After resetting the password, you will need to re-enter this data into the laptop. On the Internet the method is called HP Probook/Elitebook BIOS Password Reset Utility(you can “Google” it by the name of the same name), and it was with them that I was able to reset my passwords. Taking into account that the links to the program were deleted several times and are difficult to find (although I took them in one of the posts on the profile topic), I decided to keep it all separately for myself. You can download everything you need (instructions and software) from the following link: HP Probook Elitebook BIOS Password Reset Utility.
In the second archive you will find instructions directly for resetting the password, as well as an image of a flash drive and a program for creating it. There is also a video on how to make a bootable USB flash drive.
Update from 05/20/2018:
I came across another method online, apparently based on new laptops. Previously, the post was open, but now it is hidden for unauthorized users. The link is another method, maybe this method will help someone with newer devices, I haven’t gotten around to reading/checking it myself yet
Update from 11/01/2018/MrJeRR:
As I understand it, after the reset, important sections of the BIOS will be unlocked and until the “manufacturing...something 3 of 10” countdown is completed, you can make changes (serial number, product number, model name, etc., etc.) through HP System Software Manager sp52095 (I had to download the new version from the developer's website), i.e. via biosconfigutility64.exe/get:cfg.txt – upload the configuration, in it we can make changes (serial number, product number, model name, etc., etc.), and through biosconfigutility64.exe/set:cfg.txt we add it back to the BIOS the changes made and after a reboot everything is applied.
To avoid the inscription “manufacturing...something 3 of 10” when starting, you need to find the line “manufacture programming mode” at the end in the uploaded cfg.txt file and set the asterisk (*) to “lock” and the inscription will no longer appear! BUT you won’t be able to change the data (serial number, product number, model name, etc., etc.) after that! I recommend that you first enter all the missing serial numbers, and then lock the change in the BIOS system parameters!