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This article provides information about what is BIOS recovery và how lớn recover the BIOS on select dienmayducminh.com.vn computers or tablets. The BIOS recovery feature helps recover the computer from a power On Self-Test (POST) or a boot failure that is caused by a corrupt BIOS.

Summary: This article provides information about what is BIOS recovery and how lớn recover the BIOS on select dienmayducminh.com.vn computers or tablets. The BIOS recovery feature helps recover the computer from a nguồn On Self-Test (POST) or a boot failure that is caused by a corrupt BIOS.See less This article provides information about what is BIOS recovery and how khổng lồ recover the BIOS on select dienmayducminh.com.vn computers or tablets. The BIOS recovery feature helps recover the computer fromSee more


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Learn how to access, navigate, và update the BIOS on a dienmayducminh.com.vn computer.

What is a BIOS Recovery tool?

The BIOS Recovery tool is designed khổng lồ recover a corrupted BIOS (this often displays as a POST or boot issue). They are based on Boot Block Technology. The BIOS Recovery 2 (BR2) software"s main feature is to lớn provide the flexibility lớn recover a corrupted BIOS using a BIOS recovery tệp tin from the computer"s primary hard disk drive or an external USB drive. While the BIOS Recovery 3 (BR3) software adds a computer start-up check, that can be enabled in the BIOS to địa chỉ an autorecovery capability khổng lồ the BIOS recovery process.


A corrupt BIOS is one of the possible causes of a computer unable lớn complete POST or boot into the operating system. If the dienmayducminh.com.vn computer or tablet supports BIOS recovery 2 or 3, you can recover the corrupt BIOS by using the recovery method that is detailed below for your dienmayducminh.com.vn computer or tablet.


NOTE: BIOS recovery is not supported on all dienmayducminh.com.vn computers. See the FAQ section for a detailed các mục of dienmayducminh.com.vn computers & tablets that support the BIOS recovery.

While BIOS Recovery 2 (BR2) và BIOS Recovery 3 (BR3) is supported on dienmayducminh.com.vn desktops, all-in-one computers, laptops, convertible & detachable computers such as dienmayducminh.com.vn XPS 12 và dienmayducminh.com.vn tablets. There are different methods khổng lồ initiate a BIOS recovery on these devices. BIOS recovery can be started using:

Key sequence Button sequence

BIOS Recovery 2

Supports recovery from your computers primary hard drive và from an external USB drive. Recovery from your computers primary hard drive is enabled by default within the BIOS Setup. (It can be disabled if you choose, but this is not recommended.) Recovery from the external USB drive cannot be disabled in the BIOS Setup. Enabled by default.
NOTE: BIOS recovery 2 can be initialized using the integrated keyboard on dienmayducminh.com.vn laptops & does not support external keyboard for laptops. BIOS recovery 2 can be initialized on dienmayducminh.com.vn desktops using the standard USB keyboard. Bluetooth keyboards work if BIOS has POST support for system-specific bluetooth không dây keyboards. However, bluetooth keyboards are not recommended for use when attempting BIOS recovery. BIOS recovery can be initialized on dienmayducminh.com.vn tablets using the physical buttons that are available on the tablet. BIOS recovery can be initialized on dienmayducminh.com.vn convertible or detachable computers using both external keyboard or physical buttons that are available on the computer. BIOS recovery cannot be initialized using the touch screen of the device.

BIOS Recovery 3

BIOS recovery 3 is an improvement on BIOS recovery 2. It has all the same features, with an added feature that allows for autorecovery to start during boot if an integrity check that has to be enabled in the BIOS (Default is Disabled) fails and there is a recovery image on the hard drive. Autorecovery is not possible from other media. BIOS Recovery using hard drive BIOS Auto-Recovery on Boot Result
Enabled Enabled BIOS Recovery 2 from hard drive or USB & BIOS Recovery 3 on Boot
Enabled Disabled BIOS Recovery 2 from hard drive or USB only
Disabled N/A BIOS Recovery 2 from USB only
Disabled N/A BIOS Recovery 2 from USB only

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BIOS recovery feature is available on select dienmayducminh.com.vn desktop, laptop, all-in-one, tablet, or convertible (detachable) computers. This feature can help recover a computer from a power-on self-test (POST) or boot issue that is caused by a corrupt BIOS.


NOTE: The BIOS recovery process does not depend on the operating system that is installed on the computer. BIOS recovery feature is available on select dienmayducminh.com.vn desktops, all-in-ones, laptops, tablets, và convertibles. Lớn learn more, see the table in the Frequently asked questions section.
How vì I initiate BIOS Recovery on a dienmayducminh.com.vn desktop or all-in-one computer? Restart the computer. Press và hold the CTRL + ESC key on the keyboard until the BIOS Recovery page appears. On the BIOS Recovery screen, select Reset NVRAM (if available) & press the Enter key. Select Disabled và press the Enter key khổng lồ save the current BIOS settings. Select Recover BIOS và press the Enter key to lớn start the recovery process.

The CTRL + ESC key combination can be used khổng lồ trigger BIOS recovery on computers where an external keyboard is the primary input. This applies to lớn dienmayducminh.com.vn desktops, all-in-one computers, và laptops. The supported keyboard types on these devices are:

PS/2 keyboard USB keyboard bluetooth không dây keyboard - If BIOS has POST tư vấn for system-specific công nghệ bluetooth không dây keyboard. dienmayducminh.com.vn recommends using a USB keyboard for the BIOS recovery process.
How vị I initiate BIOS Recovery on a dienmayducminh.com.vn laptop?

Before you begin the BIOS Recovery, ensure that the battery of the dienmayducminh.com.vn laptop is charged up to at least 10%.

Verify that the máy tính is turned off and disconnect the ACadapter. Press & hold the CTRL + ESC key on the keyboard. Connect the AC adapter khổng lồ the laptop. Release the CTRL + ESC key on the keyboard after you see the BIOS recovery screen. On the BIOS Recovery screen, select Reset NVRAM(if available) & press the Enter key. Select Disabled và press the Enter key khổng lồ save the current BIOS settings. Select Recover BIOS và press the Enter key to start the recovery process.
NOTE: This works slightly differently for Alienware laptops. Follow the steps below instead. Turn off the computer, and disconnect the ACadapter. Press & hold the CTRL and ESC keys together, và go lớn the next step. Connect the ACadapter cable, & press the power nguồn button on the laptop. Release the CTRL và ESC keys when the power button LED is lit. Select Recover BIOS & press the Enter key khổng lồ start the recovery process.
How vày I initiate BIOS Recovery on a dienmayducminh.com.vn tablet?

Before you begin the BIOS Recovery, ensure that the battery of the dienmayducminh.com.vn tablet is charged up khổng lồ at least 50%.

Verify that the tablet is turned off and disconnect the ACadapter. Press and hold the Volume down button. Connect the ACadapter lớn the tablet. Release the Volume down button. On the BIOS Recovery screen, select Reset NVRAM (if available) & press Enter. Select Disabled & press Enter to save the current BIOS settings. Select Recover BIOS & press Enter to start the recovery process.
How vì chưng I initiate BIOS Recovery on a convertible or detachable dienmayducminh.com.vn computer?

Convertible và detachable dienmayducminh.com.vn computers tư vấn both the following methods where cảm ứng is the primary input.

Method 1: Key sequence Verify that the device is turned off and disconnect the AC adapter. Press & hold the CTRL + ESC key on the keyboard. Connect the AC adapter to the device. Release the CTRL + ESC key on the keyboard. On the BIOS Recovery screen, select Reset NVRAM (if available) & press the Enter key. Select Disabled & press the Enter key to lớn save the current BIOS settings. Select Recover BIOS và press the Enter key lớn start the recovery process.
Method 2: Button sequence Verify that the tablet is turned off và disconnect the AC adapter. Press & hold the Volume down button. Connect the AC adapter to lớn the tablet. Release the Volume down button. On the BIOS Recovery screen, select Reset NVRAM (if available) & press Enter. Select Disabled and press Enter lớn save the current BIOS settings. Select Recover BIOS and press Enter to start the recovery process.
NOTE: BIOS Recovery cannot be triggered using the touch screen of the convertible or detachable dienmayducminh.com.vn computer.

The following table takes you through how to lớn identify the version of BIOS Recovery your dienmayducminh.com.vn Tablet or computer that is shipped with:

BIOS Recovery 1 Alienware Inspiron Vostro Latitude OptiPlex Precision Tablet XPS BIOS Recovery 2 BIOS Recovery 3
If your dienmayducminh.com.vn computer shipped before December 2015 and is listed below, then it supports BIOS Recovery 1.
Alienware X51 R3 Inspiron 3059 All-in-one Vostro 3250 / 3650 / 3653 Latitude 3470 / 3570 OptiPlex 3040 Precision mobile 3510 Venue 10 Pro 5056 XPS 12 9250
Alienware Echo 13 R2 Inspiron 3459 All-in-one Vostro 5450 All-in-one Latitude 3640 / 3560 OptiPlex 3240 Precision thiết bị di động 5510 Venue 8 Pro 5855 XPS 13 9350
Alienware Echo 15 R2 Inspiron 5459 All-in-one Vostro 3459 / 3559 Latitude 5175 / 5179 OptiPlex 5040 Precision mobile 7510 / 7710 XPS 15 9550
Alienware Echo 17 R3 Inspiron 7459 All-in-one Vostro 5459 Latitude 7370 OptiPlex 7040 PrecisionWorkstation 3420 XPS 8900
Inspiron 3158 / 3153 Latitude E5270 OptiPlex 7440 Precision Workstation 3620
Inspiron 3250 / 3153 Latitude E5470
Inspiron 3459 / 3559 Latitude E5570
Inspiron 5457 / 5557
Inspiron 5459 / 5559 / 5759
Inspiron 7359 / 7353
Inspiron 7559
Inspiron 7568
Any dienmayducminh.com.vn computer that is shipped after December 2015 that has the intel SkyLake chipset, supports BIOS Recovery 2.
Any dienmayducminh.com.vn computer that is shipped after August năm nhâm thìn or with the intel Kaby Lake chipset, supports BIOS Recovery 3.

NOTE: Further revisions containing more enhancements khổng lồ these recovery options are expected lớn come as the giải pháp công nghệ improves.

If your computer is in a working condition, follow these steps lớn identify if your dienmayducminh.com.vn computer supports BIOS recovery:

Restart the computer. Press the F2 key on the keyboard several times until the computer enters the BIOS setup. If you find the option BIOS Recovery from Hard Drive in the BIOS setup, your dienmayducminh.com.vn computer supports BIOS recovery 2. If BIOS Recovery from hard drive is enabled & there is a BIOS Auto-Recovery field settable in the BIOS setup, your dienmayducminh.com.vn computer supports BIOS recovery 3.

If your computer is NOT in a working condition, check if it matches one of the computers in the table in the drawer above or if it was manufactured after December năm ngoái and has the intel Skylake chipset. If so, your computer should tư vấn the BIOS recovery 2 feature & BIOS recovery may be attempted.

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If your computer is NOT in a working condition, check if it matches one of the computers in the table in the drawer above or if it was manufactured after August năm nhâm thìn or has the hãng intel Kaby Lake chipset. If so, your computer should support the BIOS recovery 3 feature and BIOS recovery may be attempted.


NOTE: There could be slight variation in description of the option between different types of BIOS that are implemented on dienmayducminh.com.vn computers. The presence of BIOS Recovery from Hard Drive in the BIOS cài đặt identifies that the dienmayducminh.com.vn computer supports BIOS recovery.

Auto-Recovery is only possible in computers that tư vấn BIOS Recovery 3. Systems bởi not ship with Auto-Recovery enabled. Follow the instructions below if you want khổng lồ enable this feature.


NOTE: Auto-Recovery is only available on BIOS Recovery from hard drive. tự động Recovery is not available on BIOS Recovery from USB Key. Auto-Recovery does not search for a Recovery Image from the USB drive. Auto-Recovery is disabled if BIOS Recovery from hard drive is disabled. Auto-Recovery only searches for a Recovery Image from hard drive.
Restart the computer. Press the F2 key on the keyboard several times until the computer enters the BIOS setup. Look for the group Maintenance và the page BIOS Recovery in the BIOS setup. Identify the BIOS Recovery from hard drive field which should be enabled. (If it is not enabled, phối it to lớn enabled.) Change the BIOS Auto-Recovery field from the default which is disabled khổng lồ enabled. Identify the Always perform Integrity check field & change from the mặc định which is disabled khổng lồ enabled.

With this option configured the BIOS recovery will automatically recover the BIOS without your intervention if something happens during the computer starting up.


For those computers that support BIOS recovery, the BIOS Recovery tệp tin will already be on the computers Hard Drive (hard drive) in the ESP/EFI Partition. If the BIOS Recovery tệp tin is NOT found on the hard drive, it could be that: Your hard drive has been replaced since it left the factory. You have changed your BIOS from UEFI khổng lồ Legacy boot. You have reimaged your computer since receiving it from the factory. You have reinstalled the computer with a new operating system và formatted the hard drive. If your computer is in a working state, you can địa chỉ the BIOS Recovery file back to lớn the hard drive, by reflashing the BIOS. (Even if you are putting the same revision back on, that it is flashed to.) Remember that for this to work the BIOS has to lớn be set to lớn UEFI & the operating system must be at least Windows 7 64 bit or a more recent revision. If your computer is NOT in a working state, for example, a no Post or no Boot situation và the BIOS Recovery tệp tin is not on your hard drive - It isnot possible to attempt to lớn flash the BIOS to địa chỉ cửa hàng the BIOS Recovery file to the hard drive. Fortunately, even in this condition, it is possible to lớn use a recovery file on an external USB drive. If you have a dienmayducminh.com.vn BIOS on your computer you can follow the instructions below, however, if your BIOS is supplied by another manufacturer then you must liên hệ dienmayducminh.com.vn Technical support to get a copy of its recovery file. (You can identify a dienmayducminh.com.vn BIOS as the touchpad or mouse pointer still works & the information is in a tree format on the leftside of the screen. A BIOS supplied by another manufacturer tends lớn use a menu bar along the đứng đầu of the screen that you navigate using the keyboard.) Save the BIOS.exe tệp tin to your desktop. Rename the file to BIOS_IMG.rcv changing the filename & file extension. If you cannot see the file extension, then go lớn the Windows Start icon & type in Folder Options. Click View và clear the HIDE EXTENSIONS FOR KNOWN file TYPES & click OK. Right-click the tệp tin saved on the desktop, the extension for the file .exe can now be seen và changed.

To create an external USB drive to perform BIOS recovery, you need the following:

A working computer An empty USB drive
WARNING: All data on the USB drive will be erased. Ensure that you save the files và folders from the USB drive before proceeding to create a USB recovery key.
Creating the USB drive: Plug the USB drive into the computer. Press the Windows key + E to open File Explorer (also known as Windows Explorer). Right-click the USB drive và click Format. Change the File computer to FAT32. Check the box next lớn Quick Format. Click Start khổng lồ being formatting the USB drive. Copy the BIOS file to the USB drive. Xuất hiện Command prompt in administrator mode. In Windows 10, Windows 8.1 or Windows 8 - Press the Windows key + X on the keyboard to mở cửa a power user menu & select Command Prompt (Admin) In Windows 7 or Windows Vista - Click the Start button và type command prompt in the tìm kiếm box. Right-click cmd in the search results and select Run as administrator. In the command prompt window, type cd x: và press the Enter key, where x is the drive letter of the USB drive. You can find the drive letter of the USB drive in tệp tin Explorer (also known as Windows Explorer). Type dir và press the Enter key on the keyboard. You should see the name of the downloaded BIOS file. Type ren xxxxx.exe BIOS_IMG.rcv and press the Enter key. Replace the xxxxx with the name of the downloaded BIOS file.
NOTE: The Recovery from a USB drive method is recommended as the best option for Alienware and XPS owners. Those who are experiencing a 3,6 or 3,7turn on self-test failure LED blinking pattern during startup of Alienware R5, R6, R7, R8, or XPS 8910, 8920, 8930 computers can find step-by-step troubleshooting instructions in the dienmayducminh.com.vn knowledge base articleBIOS Recovery Steps for a No Post issue on OptiPlex, Alienware, XPS, Vostro & Inspiron Desktop PCs.

Some dienmayducminh.com.vn computers & tablets have an option to keep the BIOS settings before starting the recovery process. If this option is seen after starting off the BIOS recovery 2 feature, & you want to keep the current BIOS settings - Select the option that disables the NVRAM reset.


Warning: The mặc định setting for Reset NVRAM is set lớn Enabled. This clears all BIOS settings. Certain dienmayducminh.com.vn computers or tablets may not have the feature to Reset NVRAM.

The default tìm kiếm location for the BIOS recovery image is on an external USB drive (if present). If a USB drive is not present, the recovery image on the primary hard disk drive will be used.


NOTE: If the recovery image is not available on the primary hard disk drive, or the affected computer is experiencing a No POST/No Boot issue, then creating a USB recovery key is the only option.

Once a Hard Drive is replaced, lớn reinstate BIOS Recovery capability on computers that shipped with this capability, the following must occur.

The BIOS must be set to lớn UEFI, NOT Legacy Boot. The Operating System must be reinstalled & must be Windows 7 64 bit or a more recent revision of the Windows Operating System.

The BIOS must be flashed again khổng lồ the latest revision available, even if it already is at the latest revision. (This creates the Recovery file within the EFI partition.)
NOTE: Some older dienmayducminh.com.vn computers may not support BIOS recovery, even with the latest version of BIOS.
How vị I recover the BIOS if the hard disk drive is either encrypted or has the hard drive password enabled in the BIOS?

BIOS recovery 2 và 3 is not supported from an encrypted hard disk drive or if the hard disk drive is password that is enabled in the BIOS. BIOS recovery cài đặt attempts to tìm kiếm for the recovery image on the hard disk drive but eventually will fail.If you can enter the BIOS setup, you can try lớn disable the hard disk drive password & try recovering the BIOS.


How bởi I recover the BIOS if the hard disk drive was replaced or if the recovery image is not available on the hard disk drive?

To reinstate BIOS Recovery capability on computers that shipped with this capability, carry out the following steps:

The BIOS must be set to lớn UEFI, NOT
Legacy Boot. The Operating System must be reinstalled and must be Windows 7 64 bit or a more recent revision of the Windows Operating System. The BIOS must be flashed again to lớn the latest revision available, even if it already is at the latest revision. (This creates the Recovery tệp tin within the EFI partition.)
NOTE: Some older dienmayducminh.com.vn computers may not tư vấn BIOS recovery, even with the latest version of BIOS installed on the computer.
I am hearing beeps or the LEDs are blinking in a pattern during the BIOS recovery process, what do I do?

BIOS recovery uses indications by beeps or LEDs if there are any errors during the recovery process. If you hear any beeps or see LEDs blinking in a pattern during the BIOS recovery process, try the following steps:

Shut down the dienmayducminh.com.vn computer or tablet. Initiate the BIOS recovery process again. If you are still hearing the beeps or see the LEDs blinking in a pattern, try creating a USB recovery key instead.

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