Guide to reset BIOS to factory settings - how and why. How to reset BIOS settings to default settings
In the event that the device starts to malfunction, you may need to find out how to reset the BIOS to factory settings. BIOS is a set of controlling firmware that loads the operating system (Windows, Linux, etc.) on computers and laptops.
It is the basic input and output system found on the motherboard. The key functions of this element are setting the system time, boot priority, power settings, etc.
Why you might need to reset the BIOS
The factory BIOS settings are the most secure and optimal. Therefore, returning to them helps to solve many problems on a computer or laptop. Among them:
- Password reset in case of its loss;
- For overclocking (critical parameters were set for the bus frequency or memory timings);
- When an incorrect setting was made indicating an erroneous parameter;
- The computer stopped loading.
In these and many other situations, understanding how to reset the BIOS can help save a significant amount of time and effort. If the computer is still under warranty, then it is better to contact a store or service center, as due to interference you can lose the right to free service.
Resetting BIOS in different ways
Before figuring out how to reset the BIOS on a computer, you should understand how to log in to the system. You can get into the BIOS in this way: when starting or rebooting, we start pressing the F2 or Delete key (this will depend on which motherboard is installed in the device, you can try to press different options until the desired result is obtained).
Control is carried out in this mode using five buttons. Arrows to the right and to the left will allow you to navigate through different sections, choosing the configuration options of interest. The Enter button helps to apply the selected setting or enter a section. ESC is used to exit. Now you can figure out how to reset the BIOS to factory settings - this is done by pressing the F9 key. To then save the changes made, you should use F10 (it will also help you exit the menu afterwards).
There are several completely different ways to reset the BIOS to factory settings. This could be:
- Creating programs for recording different meanings to ports;
- Closing the microcircuits at the contacts;
- All kinds of operations with jumpers and so on.
But the simplest and most understandable for many is the method with the usual pulling out of the battery, which is responsible for providing constant power for the BIOS memory even if the computer is turned off. What we need to do:
- Unplug the power cord from the power supply to system unit was de-energized;
- Find a flat battery on the motherboard (usually located closer to the edge of the motherboard, rather large);
- Pull out the battery with a thin screwdriver (if there are holders, gently bend them).
After removing the battery, it should take at least 5 minutes. (in some cases you will have to wait about a day). After it is installed back, and the holders are also neatly returned to their place. Next, turn on the power for the computer and boot. All settings should now be reset to default.
Difference between process on PC and laptop
Without a special need to understand how to reset the BIOS on a laptop or computer, it is not worth it, especially if the system boots normally. Resetting settings on a computer is easier than on a laptop. In the case of laptops, it is much more expedient to contact a service center (preferably one authorized by the manufacturer). Most often, laptop users want to apply BIOS reset for a reason forgotten password, since there are usually no problems with overclocking (there are simply no corresponding options).
Another difference is that on laptops different manufacturers the reset process can be carried out using various buttons (most often F2 or Esc) and a sequence of actions. So, resetting the Asus laptop to the factory settings is done by pressing the F2 key (entering the settings) at boot, going to the "Boot" option, selecting the Boot Booster function (you need to set the shutdown to the item). Next, you need to save the settings as standard and reboot. In all other cases, the process may differ for different manufacturers, with computers in this regard it is somewhat easier.
When looking for a solution to how to reset BIOS settings to default, one should take into account important point... Boards with good quality even if removed, the batteries can hold the parameters for half an hour or more. For this case, a special jumper (jumper) is provided near the battery.
It is labeled CLR or CMOS prefix. By closing its contacts, the settings are reset instantly.
Now you will know how to reset the BIOS to factory settings.
When you turn on the laptop, rarely anyone asks the question of how the laptop knows how and what to boot. The BIOS program, the basic input / output system, is responsible for the correct boot of the device. First of all, the BIOS algorithms are executed, and only then, the computer comes under the control of the operating system installed on it.
Sometimes it crashes at the boot stage, which means that some user settings interfere with the full launch of the laptop. Resetting the BIOS on a laptop is just a return to the factory, otherwise, safe settings.
The reset is carried out in two modes, automatic and manual. First, let's look at how to reset the BIOS on a laptop automatically if a password is not set on the BIOS.
On most laptop models, you can enter the BIOS by pressing the F2 or DELETE key. Surely this can be found out when the system is booted. After entering BIOS, you should find the Exit tab. We select the line "Load Setup Defaults", which means loading the default settings.
After that, a window will appear on the display where you need to confirm your intentions by selecting the inscription OK. After resetting the settings to the factory settings, you should exit the BIOS by selecting the Save and Exit line, or by pressing the F10 key.
There are situations when the BIOS settings are protected by a password, which, for some reason, cannot be entered. Therefore, further we will consider how to reset the BIOS to laptop Asus... However, modern laptops do not differ much by manufacturer, and this way is quite versatile.
First of all, you need to disconnect the laptop from the mains and remove all peripheral devices (mouse, modem, speakers, etc.). Next, you need to do the following:
- Remove the battery
- Remove the cover under which there are HDD and RAM board
- Carefully remove them from the case and find the contacts on the motherboard, closed by a jumper (jumper). As a rule, they are marked with Clear / CLR / CMOS / C_CMOS marking, depending on the equipment model.
- Move the jumper that closes the first and second contacts so that the second third is closed
- After 15-20 seconds of waiting, return the jumper to its original position
Note: on older laptop models, there is a system with two contacts. In this case, you can resort to the help of available tools and close the contacts, for example, with a screwdriver. V modern models there is a special button on the motherboard that allows you to restore settings with one click.
After these manipulations, the system's performance will be restored. As a last resort, you can reset the bios settings by removing the battery from the connector motherboard, however, this method is longer and less reliable, because resetting the parameters can take up to several hours. These actions will not only reset the settings, but also reset the BIOS password on the laptop.
Many problems that arise when working at a computer can be easily solved by resetting (zeroing) the BIOS to the factory settings. Most often, users themselves create these problems when overclocking the processor, making critical changes to the BIOS, or setting a password on the BIOS, and forget it. Resetting BIOS is not a complicated process, there are several ways. Let's consider the most common and simple ones.
One way is to perform a mechanical reset. Be sure to turn off the laptop, turn it over and on it back side find a small hole near the “CMOS” label. To clear the BIOS settings, push a small, sharp object, such as a needle or the end of a paper clip, into the hole. Hold it in this position for no more than 10 seconds. The next method is to remove the battery, which is responsible for powering the CMOS memory, even when the laptop is turned off. If the described technological hole is absent on the laptop, then you will have to remove the lower cover of the laptop. Unscrew all screws with a Phillips screwdriver and carefully pry off the cover. To avoid damaging the wires, disconnect several ribbon cables from the sockets.
Find a battery. It is not difficult to do this, it is located on the motherboard, it looks like a flat washer. Use a thin screwdriver to remove the battery from the slot. Please note that capacitors hold a charge for quite a long time and the settings will not reset to zero in a few seconds. It is usually recommended to hold the laptop without a battery for several hours, or rather a day. If the battery is soldered, you will have to unsolder and replace it. Connect the battery, assemble the laptop, turn it on.
After loading the next menu “Motherboard settings” go to the “Main” tab, the transition can happen automatically. Use the cursor arrows to highlight the 'Set BIOS Default' or 'Use Default Settings' menu item, press 'Enter'. Answer the request by pressing the “Y” key, confirm the reset of the parameters.
There is no need to reset the BIOS without unnecessary necessity. If the system works without interruptions, boots well, it is better not to touch the battery. If the settings are automatically reset to factory settings each time the computer boots, then the battery will most likely need to be replaced. Keep in mind that the mechanical method will require disassembling the laptop, and you may void the warranty on it. Therefore, to solve problems, it is better to contact the service center.
A BIOS password is one of the ways to protect information on PCs and laptops from unwanted access by strangers.
Without a password, if it is set, you will not only be unable to change the BIOS Setup settings, but also boot the operating system.
It will also not be possible to start the computer from external media.
Forgetting your password is like a disaster, because it will become impossible to use the machine. The only thing that will help you out in such a situation is its reset, or rather - zeroing.
Resetting BIOS password on PC
Resetting the BIOS password on a desktop computer is not a problem. It is cleared by clearing the CMOS flash memory - a small 32-foot PLCC chip on the motherboard that stores the BIOS settings.
Cleaning is performed in many ways, but since the entrance to BIOS Setup is closed for us, and operating system does not load, consider only hardware.
Attention! Before performing following instructions, unplug your computer from the electrical outlet.
- Method 1: Temporarily remove the battery in the flash memory. The CMOS memory is powered by a CR2032 tablet battery (pictured below under number 1), which is also located on the motherboard. Remove it from the slot and reinstall it after 15-30 minutes.
- Method 2: closure of the Clear CMOS contacts with a special jumper - a jumper (in the photo below under number 2). These contacts are usually located not far from the battery and, in addition to "Clear CMOS", they can be marked as "CLRTC", "Clear RTC", "CLR CMOS", "CRTC", "CCMOS", etc. In operation, the jumper is in position 1-2. To clear the flash memory, move it to pins 2-3, wait 30 seconds and replace it.
- Method 3: Pressing the "Clr CMOS" button, which on some top motherboards replaces the jumper.
When the PC is turned on again, the BIOS password will be cleared, and the rest of the BIOS Setup settings will return to their original state.
Resetting the BIOS password on a laptop
With laptops, things are more complicated, but there are more ways to reset the BIOS password on them. One is similar to the one described above, but it does not always help out. Why:
- Sometimes you have to disassemble the laptop completely to get to the battery or the “Clear CMOS” jumper. Only on some models the battery is under a separate cover.
- The battery may be soldered to the motherboard, but the jumper may not be present.
- The BIOS password is sometimes stored in a separate EEPROM volatile memory chip, and manipulations with the battery do not lead to anything. This is usually the case for business-class laptops and some compact models.
If the latter is your case, reset BIOS password it will turn out only by flashing the EEPROM on the programmer or by selecting a master password - a universal code suitable for a particular brand of laptop.
The option with the programmer is clearly not for home users. It is used by repairmen in service centers when more simple methods don't help.
At the same time, the microcircuit is soldered from the board, new firmware is “poured” into it and soldered into place.
After that, using the BIOS editor, enter the MAC address into the firmware and serial numbers laptop.
It turns out that the selection of a master password is the only thing that can be done at home. Different laptop manufacturers do it differently.
The essence of the method is as follows: after several unsuccessful attempts to enter the BIOS, it issues a certain code, on the basis of which the master password is generated.
As generators, programs are used (not widely available in the public domain) and web services.
Sometimes the technical support service of the car manufacturer helps to solve the problem, but, to the great chagrin, some require a payment for this.
Let's look at how to get a master password on the most common laptop brands.
Asus.
Undocumented Feature: Resetting BIOS settings and password on some models is done by pressing the Insert key at the same time as the power button.
In other cases, after a three-time failure to enter the BIOS, it displays the date of its installation on the screen. Each date has a specific password associated with it.
First, try to find the master password on the Internet by date, since users are willing to share them. If it doesn't work, use the generator service.
Acer.
Three unsuccessful input attempts result in the message "System disabled [numeric_code]".
The code is used to generate. Since it changes every time the laptop is turned on, it is not possible to find a suitable master password on the Internet, as for Asus. Sometimes it is necessary to generate several times.
HP, Lenovo.
Different BIOS versions of HP and Lenovo laptops display different messages. Some are the same as those of Acer, others are an eight-digit numeric code, and others are a ten-digit alphanumeric code.
The code is passed to the generator. Often suitable option is not generated on the first try.
Outcome
Try it, and sooner or later you will succeed. But it is better not to put a password on the BIOS without special need or write it down on paper and store it in a safe place.
In cases of any failures directly with the hardware configuration, a BIOS reset is applied. It allows you to return the BIOS state to the factory position, so the parameters will surely be optimized correctly.
The problem is relevant for users who made changes to the laptop, and as a result of the changes, system crashes or PC startup are observed. It can also be used in case of bugs in the startup system, for example, with an incorrect definition of the HDD.
Reasons to use reset
Before you reset the BIOS settings on a laptop, you should figure out what causes such a need:
- Incorrectly executed overclocking of computer devices. As the bandwidth of a CPU or GPU device increases, so does the amount of energy released in the form of heat. Laptops are not designed for such manipulations due to their size;
- Lack of access to Windows, and before starting the system itself, if nothing works on the desktop, then the reason is not here;
- You probably don't have a BIOS password. Thus, you cannot change any parameters in it, and sometimes it is vital;
- Incorrect settings, for example: the cooler is set to 100% frequency during the entire operation, which creates unnecessary noise or the startup media is incorrectly installed, etc.
There are three main methods on how to reset the BIOS on a laptop, they are to use: standard function BIOS, Debug utility working with Windows or mechanically. All methods have their advantages and disadvantages, are applicable in some cases and unacceptable in others, so you should analyze all the options. You should not be afraid, despite the terrible name, there is nothing difficult in the operation and even an inexperienced user can perform it.
How do I reset the BIOS from the menu?
The simplest method and it is used mainly when there is no access to Windows, that is, it does not start due to some failures. Also, the option is very simple and therefore it is also recommended for use as one of the first.
So, how to reset BIOS on Asus laptop and most other brands:
- Start your computer;
- At the moment the BIOS window appears, press F2 or Del, Esc, F10 or F11 are rarely used;
- It is important for you to find the item "Load Setup Defaults";
- Save and restart your PC.
Some laptops have slightly different reset methods. So, how to reset BIOS on a laptop Lenovo, Samsung, Toshiba and HP - you need to click hotkey(if there is one, it will appear at the bottom of the screen), usually F9 and it is called Setup Defaults.
In more modern versions of laptops with UEFI, the way how to reset the BIOS to laptop Acer and some others. Typical of them is the absence of a long hold on the UEFI login window, you have to press the keys quickly. There is also the desired item in the "Exit" tab and may be called Load Optimized Defaults or the like.
How do I reset BIOS settings using the Debug utility?
Very convenient option, but a Windows login is required, which is not always possible and the corresponding rights are required. The method is also suitable only for x32 bit systems, alas, but in x64 there is no support for this function. However, if your case meets the requirements, then the method is safer to use.
Also, if there are crashes in Windows, then you can start from safe mode by pressing F8 at the appropriate time.
To use the Debug utility you need:
- Press Win + R and cmd;
- Use the debug.exe command;
- Then, one by one, enter the symbolic code o702E - o71FF - q - each code must be followed by pressing Enter.
So, if you still have not been able to reset the BIOS to factory settings on a laptop, then the last method may be suitable for you - the mechanical one. It is also uncomplicated, but neat laptop disassembly is required.
How to reset BIOS on laptop manually?
Since you will need to get to the motherboard, you must understand that if the seals are broken, you will lose your warranty. Apply after this period has expired. Sometimes you don't even have to twist the lid, in more modern laptops there may be a special button on the back with the inscription CMOS. You can press it with a pin or needle.
To perform the operation you need:
- Unplug the laptop from the mains, remove the battery and all other peripherals;
- Disassemble the case so that there is access to the BIOS battery. We will not analyze in detail, since each model contains different principles parsing and positioning the motherboard in relation to other parts;
- It is necessary to disconnect the battery, this is done by lightly pressing the latch in it;
- Wait 30min, it may take 40min;
- Install it again and start your PC.
When using non-volatile boards, this trick will not work. Here, the method on how to reset the BIOS password on a laptop is different, since it requires a simple contact closure. This option is not recommended as it can lead to difficulties with turning on the laptop.
Usually there is a special CMOS button next to the battery or a jumper with 3 contacts with a corresponding inscription. If in the case of the button everything is clear, then the jumper must be moved one position to the left or right, depending on the design.
If you still have questions on the topic "Three ways to reset BIOS on a laptop", you can ask them in the comments
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