In general, if you need to reset the BIOS settings on a laptop, little depends on the name - almost all of them are the same. These could be for example:
- Asus (asus), x550c, k50c, h81m k, k551l, x552cl.
- lenovo (lenovo) 10160, v570c, c260, g580, g50, g570, b590.
- HP pavilion, 620, g6 1210sr, 4510, compaq nx6325, msi z77a g43.
- Samsung (Samsung) np355v5c, np350v5c, rc530.
- Acer aspire (acer) v5 471, v3 771g, v3 571g, 5742g, 8951.
- Dns (dns) 0170703, dell, packard bell, sony vaio, vgn ns31er.
- Toshiba satellite (Toshiba) a60, prestigio 141a03 shell, msi h110m pro vh.
The difference may be in the manufacturer of the BIOS, if you need to reset it to the factory defaults from the manufacturer.
Likewise, it is absolutely independent of Windows versions: windows 7, windows 10, windows 8 or xp - this is the prerogative of the BIOS itself.
Below we will look at several options for how to proceed, including laptop models.
The first way to reset the BIOS settings on a laptop is to remove the battery.
There is a small battery on the laptop motherboard that powers the CMOS chip. When it runs out of charge after several years, the laptop doesn't remember the date, forgets settings, and in some cases, refuses to work at all.
If you pull it out, you can instantly reset the BIOS, just unplug the power cord and remove the battery.
Then unscrew the case cover, then use a match or toothpick to carefully move the small mounting bracket and the battery will pop out of its socket.
This is usually a 3-volt lithium battery labeled CR2032 (costs about five dollars).
WARNING: CMOS laptops sometimes have a soldered battery. In this case, it is better not to touch it, but use the following method.
If your laptop is modern, then you may not have to unscrew anything. Turn the laptop upside down and see if there is a “CMOS” inscription.
If there is, then there should be a hole nearby. Stick a paperclip or something into it and hold it there for about ten seconds.
The second way to reset the BIOS on a laptop is with a jumper
The second method is to reset the jumper, which is located close to the above-mentioned battery.
The jumper is described as "CLEAR CMOS", "CLR CMOS" or "RESET BIOS" depending on motherboard installed on the computer. Appearance jumpers also depend on the laptop model.
By default, it closes two contacts - the first and second. To reset the BIOS you need to close the second and third contacts, wait a few seconds and move everything back to initial position.
If you do not have a jumper, you can use a regular screwdriver and hold it in this position for several to tens of seconds (the longer, the better). 
The third way to reset the BIOS on a laptop to factory settings by logging into it
In this method, you need to enter the BIOS and find the line “Load BIOS Default” in the settings. This way you can restore default values or factory settings.
You will have to confirm your choice with the “Enter” key, and sometimes the settings with the “F10” button.
To enter the BIOS you need to press the “Del”, “Esc” or “F2” key immediately upon startup, although other options are possible.
Please note that new versions of laptops may not have a text screen, but a graphic one. But in general, the scheme is general.
Select it and press “Enter”, and then confirm your decision - press “Yes”. In principle, how to enter the BIOS and how to reset it - all this is in the documentation for the laptop.
As mentioned above, often resetting the BIOS on a laptop must also be confirmed by saving - that is, select the menu item - “Save & Exit”, save everything, and then reboot.
Reset Asus laptop to factory defaults
To do this, immediately after starting the PC, press the F2 key to get into BIOS settings.
In some Asus, to return to factory default, turn it on and press F9, you should see the boot screen.
The recovery program will prepare the necessary files and you will be prompted to restore to factory settings. All your data will be deleted.
Then the recovery process will be done automatically, without user intervention. During the recovery process, the laptop will reboot several times.
Reset HP laptop to factory default settings
To reset your HP to factory defaults, turn off your laptop and unplug everything connected to it.
Press the F11 key when you start the laptop and hold it until HP Recovery Utility - Recovery Manager appears.
Select "System Restore". You will be prompted to save the data you need, you can do so.
Once the recovery process is complete, you will receive an HP pre-installed with Windows OS, all drivers and software HP will be installed.
Reset Acer laptop to factory settings
To restore your Acer to factory settings, turn it off and then on by holding down the Alt key and pressing the F10 key about once every half second.
The system will ask you to enter your password. The default password is 000000 (six zeros). Select Factory Reset from the menu provided.
Besides, Acer laptop can return to factory settings using the Acer eRecovery Management utility.
Reset Samsung laptop to factory settings
In Samsung, to restore to factory settings, you can run the utility Samsung Recovery Solution if you haven't deleted it.
Press F4 to start recovery Samsung settings to factory ones. Then follow these steps:
Checkpoint “Restore”. Select "Restore Full"
Select a restore point to restore your computer to its original factory state. You will be prompted to restart your laptop - answer “Yes”, then follow the instructions.
Reset Toshiba laptop to factory settings
To restore factory settings in Toshiba, do this: press and hold the 0 (zero) key on the keyboard ( numeric keypad on right).
Turn on your laptop. Release the 0 (zero) button when it starts to sound. Then a program will appear that will allow you to restore the laptop to factory settings. You just follow the instructions and follow the directions.
Full details with all pictures can be described only for one specific model.
In this post I wanted to describe the options for all models. How it turned out is up to you to decide.
However, if something is not clear, write in the comments and I will give you a detailed answer. Good luck.
Working with the BIOS requires great care, since incorrect settings can cause the computer to no longer turn on or correctly detect connected equipment. You can reset BIOS settings using three proven reset methods on your PC and laptop.
Reset in BIOS settings
If you manage to get into the interface of the basic I/O system, then there is still a chance to reset the BIOS settings through the corresponding item in the “Exit” section. This is one of the simplest options that does not require opening the computer system unit. So, to restore the BIOS and return standard settings, follow these steps:
This method works on a laptop and is suitable for a computer. After reboot, the BIOS settings will be set to default. All changes made by the user after purchasing the computer will be canceled.
Jumper reset
The first method works if you have access to the BIOS. To reset the BIOS settings to the factory state, if you have forgotten the password, you will have to disassemble system unit and use a mechanical jumper, changing the position of which interrupts the flow of current to the CMOS battery. The battery is responsible for storing BIOS settings, so if you temporarily turn off the power or remove it, the parameters will be reset to factory settings.
To completely discharge the remaining voltage, hold down the power button of the system unit for 10-15 seconds. The computer is de-energized, so nothing will happen. Then return the jumper to its original position and assemble the system unit. Factory settings have been installed, now all parameters in the BIOS are set to default.
Removing the CMOS Battery
Speaking of the jumper, we have already mentioned the CMOS battery, which is responsible for storing BIOS settings. Accordingly, if you remove it from the motherboard and then insert it back, you can restore the parameters that were set by default. The algorithm of actions is the same as when using a jumper.
After resetting the settings, you need to reinsert the battery and reassemble the system unit. After turning on the computer, there will no longer be any password on the BIOS, and all parameters will return to the factory state.
Reset on laptop
If the system unit is quite easy to disassemble, then when BIOS reset On a laptop you may encounter some difficulties. It's good if you can go into the BIOS and restore the default settings by selecting the appropriate mode in the “Exit” section. If a password is set on the BIOS, you will have to disassemble the laptop. Turn the laptop over so the back is facing you. Look to see if there is a small hole on the laptop labeled "CMOS". 
If you find it, insert something sharp into the hole - for example, a paperclip. Wait for 30 seconds to reset the BIOS settings on your laptop. If there is no hole, you will have to remove the back cover and look on the motherboard for the CMOS battery or JCMOS pins.
- Disconnect the laptop from the network, disconnect the connected devices (mouse, speakers), remove the battery.
- Remove the back cover (on some models it is enough to remove the protection random access memory and hard drive).
- Remove the RAM sticks and hard drive.
Under the RAM strips there should be two contacts that are labeled “JCMOS”. They need to be closed with a screwdriver. 
Incorrect BIOS settings can completely stop your computer. You can correct the situation by rolling back the settings to factory settings. This function is provided on all PCs, but the reset method differs depending on the device used.
When a factory reset is required
Fortunately, the need to completely reset settings does not arise very often. Typically, the user can manually change the configurations to return the device to a working state. Below are cases in which, without full reset parameters are indispensable:
- I can't remember the OS or BIOS password. In the first case, specialized programs or reinstalling the system can help, and in the second, only rolling back the settings.
- Errors when loading the system or BIOS. Failures are not always caused by incorrect settings, but in some situations, restoring default settings helps solve the problem.
- Incorrect user-specified BIOS parameters when there is no way to manually restore the original settings.
Method 1: Special Applications
Computers based on 32-bit Windows have a built-in tool with which you can roll back the settings to factory settings. This method is only suitable if it is possible to log into the OS.
Please note that the method is only suitable for 32-bit Windows. This method may not always help in restoring parameters, so it should be used only as a last resort.
Method 2: CMOS battery
Almost all motherboards are equipped with a CMOS battery. This element is responsible for storing BIOS data. If you remove the component, the parameters will be automatically reset. Be careful, not all boards provide the ability to remove the battery.
Method 3: Jumper
Modern motherboards are often equipped with a special jumper, by moving which you can reset the BIOS settings. This is done this way:
Sometimes there are boards that have more than 3 contacts, in this case, focus on the names “CLRTC” and “CCMOST”. These are the necessary contacts.
Method 4: Special button on the board
Unfortunately, not all motherboards have a button that is responsible for resetting parameters. It can be located both inside the device body and outside. Usually the button is named “clr CMOS” and is highlighted in red, but this is optional. It is better to start your search from the back panel of the computer, where the connectors for connecting components are located. When you press the button, the BIOS settings will be restored to factory settings.
Method 5: Through BIOS
You can also reset the settings using the interface itself. This is a more convenient method than the previous ones, since there is no need to disassemble the device case. Using this method is recommended only for experienced users, as there is a possibility of seriously aggravating the problem with the computer.
The method for rolling back settings may vary slightly depending on the BIOS version and PC settings.
Resetting the settings to factory settings yourself is not as difficult as it might seem at first glance. You must be extremely careful and strictly follow the recommendations in the article so as not to cause even more harm to the device.
It is no secret that in some cases, to restore the functionality of a computer system, you may need to reset the BIOS. This technique allows you to eliminate many problems with equipment, which by means and Windows tools they don't dare. Below are some basic ways to do this without any problems. Let's consider both software and physical methods for resetting the parameters of the primary system.
Why might you need to reset the BIOS?
Quite often you can come across situations where those who like to delve into the system settings set such parameters that then not only installed equipment does not work or does not work correctly, but the operating system does not boot.
You can often encounter situations where a login password is set through the primary system, which to the settings operating system has no relation at all. Sometimes it is necessary to reset the settings to factory settings even if the user notices that all computer system It works extremely unstable (it constantly crashes, reboots spontaneously, etc.). In some cases, this approach even allows you to restore the OS boot if problems at startup were observed due to the fault of the hardware.
How to reset BIOS: standard method
By and large, there is nothing particularly difficult about resetting parameters to factory settings. How to reset BIOS settings? Nothing could be simpler.
When turned on computer device you need to enter the primary system itself, using the keys that will be indicated on start screen, and then go to the reset point on home page. It can be called differently, but most often it is the Load Setup Defaults parameter or something like that. After activating it, the system will issue a warning to confirm the reset, which you must agree to by pressing the “Y” (Yes) key.
In some versions of the primary system, such an item may be present in the Exit menu.
Using a jumper on the motherboard
The question of how to reset the BIOS can also be resolved by physically interfering with the hardware of a desktop computer (the proposed actions are usually not used on laptops).
Here, near the battery, you can find a special jumper or so-called jumper, which is usually labeled CLRTC, Clear CMOS, or a similar name. The position in which it is installed is responsible for changing the operating modes of the motherboard and resetting the settings of the primary input/output system itself. How to reset BIOS settings to standard? If there are three contacts on the board, you need to set the jumper to the second position, if there are only two, use an additional jumper from another place on the motherboard to close them. Naturally, all actions must be performed with the computer terminal turned off. After this, the question of how to reset the BIOS involves long pressing the power button (about ten seconds). The computer, of course, will not turn on, but you are guaranteed to reset the settings of the primary system. Then you should set the jumper to its original position (and also remove the additional jumper, if it was installed) and turn on the terminal.
Reset by removing the CMOS battery
Another technique that allows you to quite easily solve the problem of how to reset the BIOS is to temporarily remove the CMOS battery from the motherboard socket.
The pause between its removal and reinsertion is about ten to fifteen minutes. But here you need to be very careful, since on some motherboard models the battery is non-removable.
Using the Debug Utility
Finally, the problem of how to reset the BIOS on a computer with Windows on board can be solved by using a small utility called Debug, which is a built-in tool of the operating system itself.
To launch it, you need to call the “Run” menu, where you enter the command of the same name as the tool. After the start, a black window will appear, no different in appearance from the command console. Here the parameters entered will depend solely on which version and which manufacturer is installed on the computer system.
For example, for primary Phoenix systems the values O 70 FF, O 71 FF and Q are entered sequentially, for AMI or Award systems the parameters O 70 17, O 73 17 and Q are entered. But for the correctness of the entered reset commands, you must first read the BIOS technical documentation, using for this purpose, for example, the Internet resource of the developer (manufacturer). If you enter incorrect values, it may either have no effect at all, or lead the entire system to a completely inoperable state.
Additional measures
In some cases, when it is only absolutely necessary, a reset can be performed by installing updated firmware, which settings previous version does not inherit.
True, study things like that Without knowing the intricacies of flashing, it is categorically not recommended for ordinary users, otherwise they will then have to change even the chip itself with the primary system, and maybe even the entire motherboard. So be careful.
Results
If we draw some conclusions from all that has been said, it is recommended to reset BIOS settings and parameters through the options of the primary system itself. For fixed terminals, zeroing can be used by temporarily removing the battery. You should also be careful with jumpers without knowing the essence of the issue, otherwise you will close the wrong contacts, and the motherboard, as they say, will “fly”.
It’s rare to find a working computer that has not experienced hardware failures over a long period of use. The following picture is often observed: after pressing the power button, power is supplied to the motherboard, coolers are spinning, hard drives are working, but a characteristic sound is emitted motherboard no, just like the images on the screen. Under such circumstances, users immediately agree to diagnose and repair their PC at service centers. But before you waste time and money, try resetting the BIOS on your computer, returning the motherboard to factory settings.
Why reset BIOS settings?
Resetting (resetting) BIOS settings helps in the following situations:
- The computer turns on, but there are no sounds made by the motherboard when loading BIOS. Also images on the screen.
- You have forgotten the password to enter the BIOS (or the password to continue booting the OS).
- Periodic crashes in the PC, the BIOS loads every once in a while.
- Windows won't boot.
- Changes have been made to the BIOS Setup settings configuration and you want to return them to their original form.
Reset on PC
You can reset BIOS settings either hardware or software.
Hard reset
Depending on the motherboard, you can reset the BIOS by hardware using a jumper or a special button.
Jumper
Cheap motherboards (for example from ASUS) suffer from periodic glitches. Since the BIOS did not boot, you will have to reset using a jumper marked Clear CMOS:
- Turn off the power supply (so that the standby voltage of 5 V does not flow to the motherboard).
- Open the system unit to access the motherboard.
- Look for the Clear CMOS marking near the jumper pins (may be labeled CCMOS, Clear RTC, CLRTC, CRTC). Look for batteries in the area.
- Turn on the power supply. We check the work.
Advice! If there are more than 3 jumpers, don't worry. Close the required contacts from left to right, as indicated in the instructions. Subsequent contacts do not need to be closed.
Button
Modern or mat. Premium boards are increasingly equipped with a button to reset the BIOS settings:
Advice! If you remove the battery for 10 - 20 minutes, the BIOS may reset the settings. The date and time will also be lost and you will have to set it again.
Soft reset
If the BIOS boots, a factory reset can be done using the commands.
In BIOS Setup
Using the Debug utility
The Debug.exe utility is included in Windows family. The debugger migrated from DOC OS. To use it, press Win+R and run the command
- If you have AMI BIOS or AWARD, enter the following commands: O 70 17 O 73 17 Q
- For Phoenix BIOS: O 70 FF O 71 FF Q
Important! The Debug.exe program is only available in 32-bit Windows versions. If you have the x64 version, use other methods to reset BIOS settings.
Resetting on a laptop
The procedure for resetting the BIOS on a laptop is similar. The only difficulty is that the laptop is compactly equipped and getting to the motherboard is not so easy. If software zeroing occurs exactly like this, then for hardware we do the following:
- Disconnect all peripherals from the laptop ( Charger including) and turn it screen side down.
- Remove the back cover, remove the battery, HDD, RAM boards.
- If there are two of them, close for a few seconds with a metal jumper (for example, a screwdriver, just be careful). If there is a jumper, short-circuit the other contacts for a few seconds. .
- Assemble your laptop and check your work.
Instead of jumpers, the laptop may have a reset button. Using a pencil or pen, press and hold for a few seconds.
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