Fixed: Issues with your PC not starting after BIOS update?

Updating your BIOS provides the latest support for your motherboard and chipset. Plus, it lets you access previously unlocked options, adds stability to your hardware, RAM compatibility, and so on. So, updating your BIOS might be a way to solve hardware issues. However, sometimes your PC won't boot after BIOS update. This article from Tool will tell you how to fix the PC won't boot after BIOS update error. Let's get started.

Why won't my computer turn on after a BIOS update?

A failed BIOS update that prevents your computer from booting can be extremely frustrating. This error occurs when the system is unable to load the boot files. You're either stuck with a blank screen or an endless loop of attempts. This issue predominantly affects Dell and MSI computers and laptops. The most likely cause for this is an incomplete BIOS update or an interrupted BIOS update process.

There are many reasons why a system might not boot after a BIOS update:

• Update failed/interrupted
• Incorrect BIOS configuration
• Unsupported BIOS version
• Damaged Windows operating system
• Motherboard issues

All these issues can lead to startup problems. In severe cases, it can result in data loss and irreparable damage to the motherboard. Hence, a solution should be sought immediately when such faults occur.

We've also seen reports that some users are experiencing a black screen after updating the BIOS. If this is you, check out the above article for help.

Please provide the English content you would like translated, and I will do my best to translate it into Chinese.

(Solved!) Black Screen After BIOS Update - Tools

This article discusses 8 free and easy solutions to fix the black screen issue after BIOS update. Refer to this guide when you encounter such a problem. Read More >>

How to Fix Windows Not Booting After a BIOS Update

Now that you know the possible reasons why your computer won't turn on after a BIOS update, it's time to learn how to fix it. If your Windows computer won't boot after a BIOS update, try these solutions:

• Solution 1: Run Startup Repair
• Solution 2: Reset CMOS
• Solution 3: Reapply the BIOS Update
• Solution 4: Boot into Safe Mode
• Solution 5: Perform Startup/Automatic Repair
• Solution 6: Reset BIOS to Default Settings
• Solution 7: Rebuild MBR or BCD

Fix 1: Run Startup Repair – The Most Effective

In case of any Windows boot issues, the Partition Master tool resolves them with its professional "Boot Repair" utility. This user-friendly software offers a seamless experience with efficient and comprehensive UEFI and BCD management. As a direct solution, Partition Master ensures a better experience for you.

Here are the steps:

Step 1: Connect the USB drive/external hard drive to a working computer, launch the Partition Master (RE) tool, and click “Create Bootable Media.”

Step 2: Select the tools you need, such as Boot Toolkit and other components, then click “Next.”

Step 3: Select your mobile device, and then click “Start” to burn the image file to your USB drive/external drive. You can also use this to burn a Windows ISO file to media.

Step 4: Confirm the warning, and then wait for the creation process to finish.

Step 5. Connect the bootable drive you created to the problematic computer and press “F2”/“Del” to enter BIOS. Next, set the WinPE bootable drive as the boot disk and exit by pressing “F10.”

Step 6: Your computer will then boot to the WinPE desktop. Open BootRepair, select the system you need to fix, and click “Repair”.

Select the operating system to repair

Step 7: Wait for the process to finish, and then click “OK” when you see the successful repair message.

Solution 2: Reset the CMOS

BIOS settings are stored using the CMOS battery. The CMOS retains the hard drive configuration every time you power on your computer. Any malfunction or alteration to the CMOS will directly affect Windows startup. Hence, resetting the CMOS battery should be your first solution whenever you encounter booting issues. Here's how to reset the CMOS:

Step one: Power down the computer and unplug it from the power source.

Step 2. Hold down the Power button for a few seconds to ground the computer.

Step three: Open up your computer case and remove the CMOS battery, which is usually a three-volt battery.

Step Four: Wait a few minutes, then reinstall the app, which will reset its battery.

Step Five: Boot the system and see if it works. If it does, you're done.

Fix 3: Reapply the BIOS update

Flashing your BIOS refers to replacing the existing BIOS with a new one. If the updated BIOS is corrupt or faulty, you can always replace it with a more compatible version. This time, make sure you have the right BIOS version and that the update process isn't interrupted.

There are two articles on how to update your BIOS that can help you refresh it quickly and easily.

Solution 4: Start in safe mode

Windows' Safe Mode allows the system to run with basic drivers. Since a startup issue could be due to changes in the BIOS or motherboard, you can bypass it by accessing Safe Mode. This will also allow the BIOS to self-repair. Follow these steps to enter Safe Mode:

Step 1. Insert a bootable flash drive, and restart your computer.

Step 2: Press the F8 key during startup to open the Advanced Boot Options menu.

Step 3: In the boot menu, set the boot order to prioritize booting from the inserted USB drive.

Step 4. Start the installation wizard. Choose your preferences, and click the Next button.

Step 5: Choose the Repair your computer option.

Click on “Repair my computer.”

Step 6: Select Troubleshoot > Advanced options > Startup Settings.

Click on Troubleshoot.

Step 7. Press F4 to restart in Safe Mode. Your computer will start in Safe Mode.

Restart in Safe Mode by pressing F4.

Please read:

Fix 5: Run Startup Repair / Automatic Repair

Windows has a built-in Startup Repair tool that can fix boot issues by checking and fixing damaged or missing system files. You can use this to resolve any boot problems that might have occurred after the BIOS update. You may need to create a Windows 10 installation media first, and then perform the startup repair. Here's how:

Step 1. Insert a bootable USB drive and restart the system.

Step 2: Press the F8 key to open the Boot Menu, and then change the boot order.

Step 3: Start the installation, choose your settings, and click Next.

Step 4: Select Repair your computer > Troubleshoot > Advanced options.

Step 5: In the Advanced options, choose “Automatic Repair.”

Step 6: Follow the on-screen instructions, and the repair process will begin. When it's done, restart your system.

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Method 6: Reset the BIOS to Default Settings

If the BIOS update came from an untrusted source, it might contain malware or a virus. In this case, the simplest solution is to reset the BIOS to its default settings. This will undo any changes that caused the boot problems. Follow this guide to reset the BIOS to default.

Step one: Turn off the computer, wait a few seconds, and then turn it back on.

Step 2: Press the F10 key repeatedly during startup to open the BIOS Boot Menu.

Step 3: In the menu, press the F9 key to Load Default BIOS Settings.

Next up, just translate this sentence into American English:

Step 4: Press the F10 key again to save the changes.

Step 5: When asked if you want to save the changes, select Yes.

Step 6. Restart the system and see if the error is resolved.

Fix 7: Repair the MBR or BCD

The Master Boot Record (MBR) is a section of information located in the early part of your hard drive that identifies where an operating system is located. If the MBR is damaged, the operating system will not load. Thus, in order to boot normally, it's important to rebuild the MBR or BCD. You can do this by following these steps to rebuild the MBR.

Step 1: Start up the system and press to enter the .

Step 2: Then choose “Advanced” > “Command Prompt,” and type the following:

• bootrec/RebuildBCD
• bootrec/fixMbr
• bootrec/fixboot
These are command-line options used in the Windows Recovery Environment (WinRE) to troubleshoot and repair boot issues: 1. bootrec/RebuildBCD: This command is used to rebuild the Boot Configuration Data (BCD) store, which contains information about the operating systems installed on your computer. It scans for all available operating system installations and creates new entries in the BCD store. 2. bootrec/fixMbr: This command repairs or replaces the Master Boot Record (MBR) on the system disk. The MBR is a small program that initializes the process of loading the operating system when your computer starts up. If the MBR is damaged or infected with malware, this command can help restore it to a working state. 3. bootrec/fixboot: This command writes a new boot sector onto the system partition. The boot sector contains the code responsible for loading the operating system from the boot volume. If the boot sector becomes corrupted, using this command can help fix the issue and ensure proper booting of the system.

Step 4. And then the system runs.

Step 4. Now reboot the system and check the error status.

If the previous steps do not resolve the issue, type bootsect/nt60 SYS or bootsect/nt60 ALL to remove any remaining MBR errors.

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Additional tip: Always back up your computer to prevent data loss.

Errors like “computer will not boot after BIOS update” are all too common, and can severely compromise the functionality and data security of personal computers.

In a data-driven world, it's essential to back up your computer to avoid losing personal, professional, and educational information. For this purpose, we recommend using professional backup software – the award-winning data security tool, Todo Backup.

offers one-click backup and instant recovery options. You can back up your system, files, computer applications, and even multiple hard drives. It provides system image recovery, bootable recovery, and disaster recovery options in case of unexpected system failures. All data can be accessed via USB drives or cloud backup. The backup software comes with some key features.

Todo Backup is a tool that can meet all your needs to protect your computer or data. You can download and use it with confidence. Here's how to back up your computer using the Todo Backup tool.

Step 1: Launch Todo Backup on your computer. On the main screen, click “Create Backup” and then hit the big question-mark button to “Select What to Back Up.”

Step 2: To back up the Windows operating system, click "Operating System" to start the backup task.

Step 3. The system should automatically select the Windows operating system information and all system-related files and partitions, so you shouldn't need to make any manual selections at this point. Next, click on the area highlighted in the screenshot below to choose where you want to save your System Image backup.

System Backup

Step 4: The backup location can be another local drive on your computer, an external hard drive, a network, the cloud, or a NAS. We generally recommend using an external physical drive or the cloud to save your system backup files.

Step 5: If needed, click on "Options" to customize your settings, such as scheduling daily, weekly, or monthly backups, or triggering backups on specific events. You can also choose differential and incremental backup. Click "Back Up Now" to start the Windows system backup process. Completed tasks will be displayed as cards on the left side.

Final Thoughts

"A computer fails to boot after BIOS update" is a common issue in modern computing. This usually manifests as an inability to start the system, with a black screen indicating no progress. This can be caused by an unsuccessful BIOS update, incorrect BIOS configuration, corruption of the operating system, or issues with the motherboard.

This article offers 6 solutions to fix the problem of PC not booting after BIOS update. Each method comes with a description, steps, and images for your understanding. To prevent data loss in such issues, we recommend using the Todo Backup tool. Download it now to ensure your data is 100% secure.

Common Issues After a BIOS Update Fails

Here are some common questions regarding the issue of "Computer won't boot after BIOS update":

1. Why is my laptop stuck on a black screen after updating the BIOS?

This means your computer is unable to boot after the BIOS update. The issue could be with a corrupted boot file, an unsuccessful BIOS update, a damaged Windows system, or a problem with the motherboard.

Why does my computer keep rebooting into BIOS after the update?

This is due to an unsuccessful BIOS update. The primary reason could be an incorrect boot order, which you should rectify immediately. It could also result from a faulty drive, a malfunctioning CMOS battery, or corrupted BIOS software.

3. Will I need to restart my computer after updating the BIOS?

Yes, after completing the BIOS update, you should restart your system. After the restart, you should verify that the changes have been applied.

What happens if a BIOS update fails?

When a BIOS update fails, the system is unable to load the boot files. This results in a black screen or an endless boot loop, preventing access to any files or ability to perform any actions.