How to disable usb ports in BIOS. Enabling USB ports on a laptop

Useful tips

If the USB ports on your PC are not working and Windows settings and driver updates do not help, perhaps the controller was disabled in the BIOS. In this case, you will need to go to the configuration menu and turn everything back on.

There are many different versions BIOS with its own interfaces and subtleties of operation. Also, a more modern complex can work on your computer - UEFI, which supports a full GUI interface. This article discusses the distributions that are most often installed on motherboards.

Entering BIOS settings

To start changing the configuration, you need to go to the corresponding menu. It can be opened during power on personal computer- before it started Windows boot With hard drive.

Turn on your PC. In case it is already running: reboot. Wait sound signal speaker: a short single beep indicates that everything is internal components, necessary for the computer to operate, have been detected.

Now you need to click hotkey to call the configuration. This must be done before changing the screen. If you don't have time and Windows starts loading, reboot. The keys depend on the model installed motherboard and versions BIOS firmware. You can find it in the user manual that came with the motherboard, on the manufacturer’s official website, or view on your PC screen when loading it:

If you don't know the board model, it's okay. Just try pressing the following keys: Tab, Delete, Esc, F1, F2, F8, F10, F11, F12. One of them will definitely do.

You don't have to try just 1 option at a time. You can quickly press all the buttons from the list without any problems. One of them will come up and launch the BIOS settings, and the rest will be ignored.

Entering the BIOS/UEFI settings of the latest PCs

Many modern computers boot up so quickly that you won't be able to access the keystrokes when you turn them on. This is also true for laptops. Therefore, the latest versions of Windows OS have acquired a new launch feature. Let's show it using Windows 8.1 as an example.

Your computer or laptop will reboot into setup mode. After restarting your PC, you will also be able to select option to run from a USB drive or DVD.

Menu navigation

Almost all BIOS versions are devoid of GUI. This means that you will have to work only using the keyboard, as in, for example, Windows console. Navigation is carried out using the up-down and right-left arrows. To open any section, use Enter key to go back – “Escape”. A small reminder of the keys used is always shown on the screen.

Firmware complex UEFI installed on the most expensive and powerful motherboards. It supports more drivers and can use a mouse. Its interface will be familiar Windows users and other modern operating systems.

Each version has its own interface and sets of options. Even the names of the same parameters may differ. The following article describes several popular BIOS releases.

AMI BIOS

A very common option that can be found on many modern computers. The main menu is divided into 2 parts: a list of categories and various actions, like exit or save. You will be working on the left side.

You need to go to the section called “ Integrated Peripherals». Russian version There is no interface, so all commands are only in English. Use the Down arrow to highlight this item and press Enter.

Here you need to enable ( Enabled) 4 options:

USB EHCI controller– main controller. If the motherboard has version 3.0 ports, this item will be divided into 2 parts: “Controller” and “Controller 2.0”;
USB Keyboard Support– keyboard support;
USB Mouse Support– mouse support;
– work with external data storage: flash drives, disk drives, disks of smartphones and digital cameras.

In some older versions there are only 2 points " USB controller" And " Legacy USB storage support».

When you are done with the settings, press the F10 key to save changes made and restart your computer.

Phoenix AwardBIOS

Another popular version that can often be found on modern laptops. Doesn't have home page, like AMI, but with convenient thematic tabs at the top. You can move between sections using the left and right arrows, and between items using the up and down arrows.

Go to the section " Advanced» using the Right arrow. In it, find the category “ USB configuration" All items in this section must be moved to the position “ Enabled" In some versions the category " USB configuration" may be located in the " tab Peripherals" and not in "Advanced".

To exit the menu, press F10 and confirm exit.

AMI BIOS for Asus

Version of AMI used on Asus laptops. Externally it is very similar to Phoenix - a similar bookmarks bar. Settings USB are in the section " Advanced" Go there, enable all options and exit using the F10 button.

UEFI

Contrary to popular belief, UEFI is not part of the BIOS. It can rather be called a more advanced, but less popular competitor. Exists a large number of different versions, each with its own interfaces. However, here the controls are similar to the usual Windows, so you can easily find the options you need.

Windows Settings

If at the BIOS level all ports and controllers are enabled, but USB ports still don't work, maybe the problem is in your settings Windows systems.

First, just try disconnect and reconnect the device. This will check if the drivers are correct. If there's something wrong with them, Windows will try to reinstall them.

If nothing happens when you reconnect, try turn on the controller V Windows registry. To do this you need to do the following:

Video: how to configure any BIOS to boot from a USB flash drive

Why don't USB ports work? Reasons and solution

USB interfaces are used in PCs so often that we cannot even imagine a computer or laptop without them. TO USB interface Various peripheral devices are connected: printers, web cameras, flash drives and many others. But what to do if the USB ports are out of order. Let's look at the main problems with usb operation and try to fix them.

USB interfaces are disabled in BIOS

This problem occurs very often, since suddenly turning off the light or a dead battery can throw off BIOS settings, thereby disabling the USB interfaces.

To enable them, let's enter the BIOS. To do this, after starting the computer, quickly press the Del or F2 button.

Depending on the software version and manufacturer, USB functions may be enabled in different BIOS items.

Basic BIOS options:
Enable/disable - Disabled/Enabled
Make all USB ports accessible - Both
Make available ports that are located directly on the motherboard -Primary
Number of USB ports used - 2USB Ports, 6USB Ports
Using USB 2.0 - USB 2.0 Controller.
Change operating frequency USB bus- USB Speed.

Enabling USB in AMI BIOS

Enabling USB in Award BIOS

USB port driver removed from the system

Mistakes like this happen after virus attack to a computer or critical field Windows errors. To restore USB performance The controller should be installed or, if it does not work correctly, updated USB drivers controller. To update the USB driver, follow these steps:

1.Open Device Manager on the Hardware tab in System Properties.

2. Find the USB controller item and right-click on it and select “Update driver”.

3. In the hardware wizard that starts, select the item “ Automatic installation» to search for a suitable driver.

4. The wizard will find the driver we need and install it.

5. If the wizard was unable to find a suitable driver, we will need to download it from the Internet and install it from the specified location. To do this, when choosing the driver installation option, you need to select the “Install from a specified location” option. In the next window we will be asked to search for drivers in the specified locations. Check the box next to “Include next search location” and click browse.

In the drop-down menu, indicate the package with the downloaded drivers. The wizard will check the folder for the presence of a suitable driver and select the one you need. After this, for correct installation, you should restart your computer.

The USB controller burned out.

There are cases when, due to high USB voltage the controller overheats and fails. Only a service center can help you solve this problem, since it can be fixed at program level impossible.

This article is devoted to the question of how to enable USB support in the BIOS. As it turns out, not all users know that the Universal Serial Bus functions (in the Russian interpretation - “Universal Serial Bus”) can be enabled and configured through BIOS Setup. In circumstances where you may need to this operation, we will not focus attention - they may be different. For example, you discovered that the USB devices on your computer are running slower than they should, and you want to check whether your computer's BIOS supports this bus standard latest version.

First, enter BIOS Setup when booting your computer and laptop. A separate article was devoted to how to do this on our website. It is worth noting, however, that the BIOS section with USB functions is not always obvious to the user. In addition, different manufacturers In different BIOS versions, bus management functions can be placed in different sections. This could be the Advanced, Integrated Peripherals, Onboard Devices, etc. sections.

It may, of course, happen that the section with the settings USB functions in your laptop's BIOS or desktop computer simply no. This situation can most often occur in laptops in which the number available to the user There are not very many options at all. In the BIOS of my HP netbook, for example, I did not find such an option, no matter how hard I looked. Well, that means it’s not fate...

Setting USB options in BIOS

The number and range of USB features you can adjust in the BIOS can also vary greatly depending on the version. Often in Setup you can install support for a USB mouse and keyboard attached external drives. You can also disable/enable the ability to connect USB devices altogether or enable support separate version eg USB 2.0.

List of the most common USB options (in different versions BIOS may have different names):

USB Function – enable/disable the Universal Serial Bus controller
USB 2.0 Controller Mode – switching the USB 2.0 controller to 1.1 mode and back
Assign IRQ For USB – assign IRQ to USB devices
USB Speed – setting the speed of the USB bus
– USB keyboard and mouse support
USB Storage Support – support for external drives on this bus
Emulation Type – setting USB drive emulation modes

Once you have set the option you need, be sure to save it by selecting the BIOS Setup “Exit and Save Changes” option to restart your computer.

Installing USB parameters in the BIOS, however, you should remember that they incorrect installation may cause any devices permanently connected to the Universal Serial Bus, such as a keyboard or mouse, to become inoperable.

Conclusion

In this article, you learned how to enable USB support, as well as set USB options in the BIOS of your computer or laptop. As a rule, this operation is quite simple and will not take you much time.

Peripheral devices such as a mouse, keyboard, Web camera, and printer are usually connected to the computer via USB ports. In this case, it often happens that one or more ports stop working. That is, when you connect, for example, a flash drive to a computer, it is not recognized, the keyboard or mouse may freeze, and the printer may not respond or print pages.

There are several probable causes where some or all of the USB ports on the computer do not work. Let's try to understand this issue and find out what should be done to restore normal functioning computer.

Checking BIOS settings

The first thing you should pay attention to is the settings Computer BIOS. To enter the BIOS you will need a working keyboard. If the keyboard is connected to the computer via USB and it does not work, then you need to connect a keyboard with a PS/2 connector. Otherwise, you simply won't be able to do anything.

So, let's go to the BIOS, for which, when starting the computer, you need to press the enter key, usually DEL. There may be another key that appears on the screen and is listed in the motherboard manual. After entering the BIOS, find the section responsible for integrated devices (Integrated Peripherals) or the “Advanced” section. Here you should find the “Onboard Devices Configuration” subsection. It is there that the parameters responsible for USB operation controllers: USB Function or USB 2.0 Controller. These parameters must be Enabled. And if one of them is disabled, then hover over it and press Enter, thereby turning it on. To ensure that the changes you make are not lost, you must save them by pressing F10 and confirm saving by pressing the Y or Enter key.

After restarting the computer, check if the USB ports are working. And if not, then you should look for the reason elsewhere.

USB ports on the front of the computer do not work

How special case USB only on the front panel may not work for you. In such a situation, you need to check whether the necessary connectors on the motherboard are connected and whether the wires are damaged. To do this, open the side cover of the system unit and pay attention to the connector at the bottom of the motherboard. On the board itself there is an inscription USB1 or USB2, as well as on the block itself. The wires from the block go to the front panel, and if they are disconnected or broken in one place, then you have discovered the cause of the malfunction. Damaged wires should be connected or replaced. It would also be a good idea to check the contact in the connector on the motherboard. It is also worth paying attention to the board located on the front panel. Perhaps there is short circuit By the way, such a short circuit can be caused by accumulated dust. So be sure to clean system unit from dust.

Problems with the device itself or the cable

The next source of problems with USB may be the cable with which, for example, the printer is connected. This fault is easy to identify and fix. We connect the flash drive to the connector being tested. If it works, then we try to connect another known-good equipment, for example a USB hub, using a suspicious cable. If it also refuses to work, then the reason is clearly in the cable and it should be replaced.

Power outages

There are situations when there is simply not enough power for all devices. For example, when connecting external hard A disk that uses two USB connectors at once may turn off the printer or keyboard. In this case, the power of the power supply is not enough to provide energy to all consumers. In this case, the problem may not appear immediately, but after some time after turning on the computer. There are several ways out of the situation. If you have a low-power power supply installed, for example, 300 W, then it would be logical to change it to a more powerful one, 450-600 W. You can also use an active USB hub (with external power). It will allow you not only to increase the number of connected USB devices, but also to power them from a separate power supply.

Another reason that affects USB operation is a dead CMOS battery. But at the same time, every time you turn on the computer, you will observe a problem system time and date. After replacing the battery the problem goes away. But this doesn't happen often, so you should check the rest possible sources malfunctions.

Missing or incorrect installation of USB drivers

Reasons related to software malfunctions in Windows 7/10, can be identified using Device Manager. If you notice that one or more devices in particular are not working, regardless of the port used, this may indicate that the problem is in the device itself. Open Control Panel and go to Device Manager. All connected devices will be displayed there. If there are items in the list next to which there is a yellow Exclamation point or instead of the name it stands Unknown device, then the problem is in this very device. There may be several possible problems here.

Often USB inputs stop working after Windows reinstallation 7/10. The reason is incorrect installation of drivers or necessary drivers may not be found at all. You will have to select and install manually.

Often, to fix a problem you just need to update the drivers. Yes, if disabled automatic update Windows, and the system itself was installed quite a long time ago, its relevance is lost software, may appear system errors. In this case, the device begins to work incorrectly, or even stops functioning altogether. To update (reinstall) USB controller drivers, you can use a CD/DVD with drivers for the motherboard or download the necessary drivers from the motherboard manufacturer's website.

You can also turn off the power saving feature for all ports using Device Manager. Expand the list of used USB devices hidden in the sections “USB Controllers”, “Mouse and other pointing devices”, “Keyboards”. Double-click on to the desired device to open the properties window. Now switch to the “Power Management” tab and uncheck the “Allow the computer to turn off this device to save power” checkbox. Thus, the device will always be activated under any circumstances.

If some equipment is not recognized, then there may be either a problem with the drivers already known to us, or a hardware problem, consisting of a lack of contact, a damaged cable, or a malfunction of the controller. Moreover, it often happens that when a faulty device is connected, the others stop working normally. The keyboard starts to freeze, as does the mouse, and the printer stops printing. The problem is similar to power shortage, that is, all power consumption is spent on faulty device, in which there may be an ordinary short circuit or other malfunction.

USB ports not working due to controller damage

If none of the above actions helped restore the functionality of the USB ports, then you should check the USB controller of the motherboard, which may have failed. High-quality repair and diagnostics in this case should be entrusted to specialists service center. As a way out of the problem, try installing an expansion card, the so-called USB PC controller, which is installed in the PCI slot on the motherboard. This solution is noticeably cheaper than repairing the motherboard USB controller, and when used additional USB hub the problem with a lack of ports will not be relevant at all.

As you can see, finding and fixing problems with USB ports is quite a troublesome task, and all because there can be a lot of reasons. Consistent search and elimination of obviously incorrect paths will allow you to identify and eliminate the problem.