How to disable USB 3.0 in the Acer BIOS. How to disable or enable USB ports in Windows. Enabling and disable USB drives using the registry editor
Sometimes there is a need to disable USB ports on a computer or laptop to limit access to connecting flash drives, hard disks and other USB devices. Disable USB ports help prevent connection of any drives that can be used to theft important information or to cause a computer infection with a virus and spread malicious software by local network.
USB access restriction
Consider 7 waysWith which you can block USB ports:
- Disable USB through the BIOS settings
- Changing the registry settings for USB devices
- Disable USB ports in Device Manager
- USB Controller Drivers Uninstallation
- Using Microsoft Fix IT 50061.
- Using additional programs
- Physical disable USB. Portov
1. Disable USB ports through BIOS settings
- Enter B. bIOS settings.
- Disconnect all items associated with USB controller (for example, USB Controller or Legacy USB Support).
- After you have done these changes, you need to save the settings and exit BIOS. This is usually done using the key. F10.
- Restart your computer and make sure that USB ports are disabled.
2. Enable and disable USB drives using the registry editor
If you do not fit through the BIOS, you can close access directly to the Windows OS itself using the registry.
The instruction below allows you to close access for various USB drives (for example, flash drives), but other devices, such as keyboards, mice, printers, scanners will still work.
- Open the Start menu -\u003e Run, enter the command " regedit."And click OK to open the registry editor.
- Go to the next section
HKEY_LOCAL_MACHINE \\ SYSTEM \\ CURRENTCONTROLSET \\ SERVICES \\ USBSTOR
- On the right side of the window, find the item " Start."And double-click on it to edit. Enter value " 4 »To block access to USB drives. Accordingly, if you enter again the value " 3 "Access will be open again.
Click the "OK" button, close the registry editor and restart the computer.
The method described above only when installed driver USB controller. If for security reasons, the driver was not installed, the "Start" parameter can be automatically reset to "3" when the user connects uSB drive And Windows will install the driver.
3. Disconnect USB ports in Device Manager
- Click right-click Mice on the icon " A computer"And choose in context menu Item "Properties". A window will open in the left part of which you need to click on the link " Device Manager».
- In the device dispatcher tree, find item " USB controllers"And open it.
- Disconnect controllers by pressing the right mouse button and select the "Disable" menu item.
This method does not always work. In the example shown in the figure above, the disconnection of the controllers (2 first items) did not lead to desired result. Disabling the 3rd point (USB storage device) worked, but it makes it possible to disable only a separate USB drive instance.
4. Deleting USB Controller Drivers
As an option for disconnecting ports, you can simply uninstall the USB controller driver. But the disadvantage of this method is that when you connect the USB drive, Windows will check the availability of drivers and in absence to install the driver. This in turn will open access to the USB device.
5. Bans User Connecting USB storage devices using Microsoft Applications
Another way to prohibit access to USB drives is the use of Microsoft Fix IT 50061 (http://support.microsoft.com/kb/823732/en - the link can be opened near Mitutu). The essence of this method is that 2 conditions for solving the problem are considered:
- USB drive has not yet been installed on a computer
- The USB device is already connected to the computer.
As part of this article, we will not consider this method in detail, especially since you can study it in detail on the Microsoft website using the reference above.
Should still be taken into account this method Suitable not for all versions of Windows.
6. Using programs for disconnecting / enable access to USB storage devices
There are many programs to install access to USB ports. Consider one of them - the program USB DRIVE DISABLER.
The program has a simple set of settings that allow you to prohibit / allow access to certain drives. Also, USB Drive Disabler allows you to configure alerts and access levels.
7. Disable USB from the motherboard
Although the physical shutdown of USB ports on the motherboard is a practically impossible task, you can turn off the ports on the front or top of the computer case, disconnecting the cable going to the motherboard. This method will not completely close access to USB ports, but will reduce the likelihood of using the drives in inexperienced users and those who simply be lazy to connect devices to the rear of the system unit.
! Addition
Prohibition of access to removable media via Group Policy Editor
In modern windows versions It is possible to restrict access to removable storage devices (USB drives including) using the Local Editor group Policy.
- Launch gpedit.msc.through the "Run" window (Win + R).
- Go to the next branch " Computer Configuration -\u003e Administrative Templates -\u003e System -\u003e Access to Removable Storage Devices»
- On the right side of the screen, find the item " Removable discs: Prevent reading. "
- Activate this parameter ("Enable" position).
This section of the local group policy allows you to configure read, recording and execution for different classes of removable media.
This article is devoted to the issue of how in BIOS enable USB support. As it turns out, not all users know that the functions of Universal Serial Bus (in Russian interpretation, the "universal serial tire") can be enabled and configured via BIOS Setup. On circumstances, due to which you may need this operation, We will not sharpen attention - they may be different. For example, you found that USB devices on your computer work more slowly than must, and want to check whether BIOS is supported by the standard of this tire. latest version.
First, log in to the BIOS Setup when downloading a computer and a laptop. About how to do this, was devoted to a separate article on our website. It is true, however, it is noted that the BIOS partition with USB functions is not always striking the user in the eye. In addition different manufacturers BIOS In different versions of the bus management function can be placed in various sections. These can be partitions Advanced, Integrated Peripherals, Onboard Devices, etc.
May, of course, happen and so that the section with setting uSB functions In the BIOS of your laptop or desktop computer simply no. Such a situation can most often meet in laptops, in which the number of options available to the user is not very large at all. In the BIOS of its netbook HP, for example, I did not find such an option, no matter how I was looking for. Well, it means, not fate ...
Installing USB options in BIOS
The number and set of USB functions that you can adjust in the BIOS can also vary greatly depending on the version. Often in Setup you can set support for USB mouse and keyboard connected external drives. You can also disable / enable connectivity uSB devices Or enable support for a separate version, for example, USB 2.0.
List of most common USB options (in different versions Bios may have different names):
- USB FUNCTION - Enable / Disable the universal sequential tire controller
- USB 2.0 Controller Mode - Switching USB 2.0 controller to Mode 1.1 and back
- Assign IRQ for USB - Assignment IRQ USB devices
- USB Speed \u200b\u200b- installation speed uSB tires
- - Support USB keyboard and mouse
- USB Storage Support - support for external drives on this tire
- Emulation Type - Set USB drive emulation modes
By installing the parameter you need, do not forget to save it by selecting to restart the computer. bIOS option SETUP "EXIT AND SAVE CHANGES" ("Exit, Saving Changes").
Setting uSB settings in the BIOS, however, it should be remembered that their incorrect installation It may lead to the inoperability of any devices constantly connected to the universal sequential bus, for example, keyboard or mouse.
Conclusion
From this article, you learned how to enable USB support, as well as set the USB options in the computer or laptop bios. As a rule, this operation is satisfied simple and does not take you a lot of time.
To begin with, you need to figure out why you may need to disconnect USB ports on your computer. Everything is quite simple here. With the advent of miniature data warehouses running via USB, there has been a need to prevent data leakage from computers. Using a conventional flash drive or portable hard disk, You can easily pull any information. To prevent such incidents and you must completely disable USB ports. Of course, each may have their own reasons for turning off the ports, but it is not so important. Below will be presented several ways to disable USB ports on the computer.
Turn off USB ports in BIOS settings
In fact, everything is quite simple: I go into the BIOS settings and turn off all ports, or those that are necessary. The nuance is that this moment There are several versions of the BIOS "A, and the shutdown of ports in each is sometimes different.
Bios Award. Go to the BIOS settings and select item Integrated Peripherals.Go to B. this menu. Next, we simply find items: USB EHCI Controller, USB Keyboard Support, USB Mouse Support and Legacy USB Storage Detect and turn off their choosing parameter Disabled.. Then simply save the settings and reboot the computer;
Phoenix-Award and Ami Bios.. We go to the settings and choose the item Advanced (sometimes in some version can be Peripherals item) or Advanced Bios. Features.. Next, go to the menu USB Configuration.Next, turn off all USB items Save the settings and reboot the computer;
UEFI. More modern panel. Go to the menu Peripherals. or Advanced. Choose points Legacy USB Support and USB 3.0 Supportand turn off them. Next, save the settings and reboot PC.
Note!In some version, the menu items may differ slightly by name, but it is not scary, just go through the menu and find the USB settings.
Turn off the USB with the registry
This is a more suitable way. In the registry can be disabled uSB access Ports K. specific devices, not the ports themselves. In times when almost everything is connected via USB, including a mouse and keyboard, this method will be preferable. You can simply disable port access specifically to the flash drives, but the computer mouse will work normally.
Open registry editor: Keyboard shortcut Win + R.I enter the team regedit. and Zhmem. OK. Next, go to the next section:
HKEY_LOCAL_MACHINE \\ SYSTEM \\ CURRENTCONTROLSET \\ SERVICES \\ USBSTOR
Find Start.Open it and specify the value 4 . Save the settings and restart the computer. This section closes the access of external drives to the port.
Note! If the computer is not installed uSB drivers controller, then value Start. automatically change to value 3 As soon as the device is connected to the port.
Turn off USB via Device Manager
Open Device Manager: Right mouse button on My computerOpen Properties, Further Device Manager. Open menu USB controllers. Press the right mouse button and select the item in the context menu Disable.
Important! Removing drivers on USB controllers It will not work, because when you first connect the device to the port, Windows will start installing the drivers.
Turn off the USB using Windows files
Prohibit access using the Local Group Policy Editor
Also, the ban can be read and write.
Additionally
It is also worth mentioning that there are two more ways to restrict access to ports: limit access with third-party programs and physical shutdown ports.
There is plenty of third-party software on the Internet, and configures each in its own way, there is no point in painting this method in the article. All you need is to find the necessary program and instructions for it.
As for the physical shutdown of the ports, this method will work only with ports on the front panel of the system unit. Open system unit And neatly disconnect the wires going to the ports.
Outcome
Wouldn't have the reason for the need to disable USB ports, now you know how to do it.