Basically speaking, BIOS update refers to the update of the motherboard BIOS on a computer. Unlike other types of updates, the BIOS update will not bring us the system performance improvement. So you may be wondering “Do I need to update my BIOS” since it is more dangerous to update motherboard BIOS than updating drive-based software.

If something goes wrong during the update process, your PC may become completely unbootable. You’ll lose access to your system and all the files stored on the internal hard drive. So what are you going to do when finding PC not booting after BIOS update?

Actually, there are ways to bring the PC back to life when updated BIOS leads to a black screen. But how? Let’s just dive into this PC boot failure problem.

Issue Occurred: PC Not Booting after BIOS Update

Are you stuck with computer startup problems after a BIOS update? “manuntd7” said yes to this question.

The user manuntd7 described his personal experience in this post that he chose to update the BIOS after he had noticed the update push in the system. But after the work had been done, he discovered that his laptop won’t boot after BIOS update.

In fact, “PC won’t boot after BIOS update” has long been a hot topic on various forums. No matter you’d like to update BIOS in Windows 10 or other operating systems, PC not boot may become your worries. This can be a tough problem due to mainly two reasons: 1. all the data can’t be accessed when a computer doesn’t boot after BIOS update; 2. ordinary computer users don’t know an effective way to fix when PC doesn’t boot up.

Taking all these factors into account, I plan to share the practical recovery & repair solutions with you after the update of Windows BIOS failed.

What to Do after BIOS Update Failed: Recovery & Repair

In this part, I’ll tell you how to do a good recovery job when Windows 10 won’t boot after BIOS update, from two aspects (if Windows 7 won’t boot after BIOS update, the recovery solutions are roughly the same). The first aspect is how to secure your data and the second part is how to repair the system when PC won’t boot after update.

Secure Your Data on Windows 10

People often say that backup is very important, but very few of them really realize its importance and form the habit of backing up useful data, let alone keep the backup updating from time to time. This is how you get yourself into the dilemma of data loss.

Yet, the good news is PC data recovery is possible. If you do have a backup, please resort to it directly; if you don’t have one, please rescue your data by using MiniTool Power Data Recovery – a safe and reliable program.

Things to do when you see a black screen after BIOS update:

 Please see “How to Build MiniTool Power Data Recovery Boot Disk” talked about in part 2 of Operating System Not Found Error Appears, How To Recover Data.

This is how to perform data recovery when PC doesn’t boot up.

 You may be also interested in the data recovery from hard disk without OS.

When you have found back all the files you need, you can do a data backup immediately for security reasons (MiniTool ShadowMaker may be a good choice for backup).

Fix a Computer That Won’t Turn On

As for how to fix the computer startup problems in a Windows 10 system, I’ll give my suggestions in this part.

Method 1 – rebuild MBR.

• Rebuild with third-party software
  Step 1: find a normally working computer to acquire MiniTool Partition Wizard Pro by clicking the button below.
  Step 2: also, build a boot disk with the MiniTool Media Builder on a USB flash drive/CD/DVD.
  Refer to step 3 and step 4 mentioned in above “Secure Your Data on Windows 10” part.
  Step 5: select “MiniTool Boot Disk [EMS Enabled]” to load the boot disk when you see the following page.

a). select the boot disk.
b). click on “Rebuild MBR” from left action panel.
c). click on “Apply” button to execute the pending operation.

This is how to use MiniTool Partition Wizard to try to fix the problem when the computer won’t boot up after a BIOS update.

• Repair with Command PromptAlso, you can use other tools, like Command Prompt, to repair MBR (Master Boot Record) for your non-bootable computer. Main steps are:
  1. Enter the Windows Boot Options menu. If you can’t see this menu, please create a Windows installation disk and then boot your computer from it so as to access the menu.
  2. Select “Troubleshoot” -> “Advanced Options” -> “Command Prompt“.
  3. Type the following commands in order and press “Enter” after typing each of them.
  “bootrec.exe /rebuildbcd”
  “bootrec.exe /fixmbr”
  “bootrec.exe /fixboot“

Method 2 – check & fix hard drive with Command Prompt.

Also, you should enter the Windows Boot Options menu to select “Troubleshoot“, “Advanced Options” and “Command Prompt” in order. After that, you should type “chkdsk c: /r /x” and press “Enter“. Now, just wait for the automatic completion.

Method 3 – fix with Startup Repair.

• If you have the installation disc, please set your PC to boot from the installation disc firstly and wait for loading files. In the Windows Setup interface, you should select language, time and currency format, keyboard or input method and then click on “Next“. Then, click on “Repair your computer“-> choose “Troubleshoot” -> choose “Advanced options” -> choose “Startup Repair“. Finally, choose a target operating system to repair and let Windows diagnose & fix the problem for you.

• If you don’t have the installation disc, please access the recovery environment by turning your computer on and off three times. After that, Win 10 will boot into the diagnostics mode. Now, you should click on “Advanced options” on the recovery screen, and then choose “Troubleshoot“, “Advanced options” and “Startup Repair” one by one. The last step is the same.

Method 4 – roll back to the previous build.

The previous few steps are the same with those mentioned in method 2. The difference lies in – you should choose “Go back to the previous build“, instead of “Startup Repair“, after clicking on “Troubleshoot” and “Advanced options” successively.

Method 5 – make use of System Restore.

Also, the previous few steps are the same with those mentioned in method 2. But, after clicking on “Troubleshoot” and “Advanced options” successively, you need to click on “System Restore” in the “Advanced options” window.

Method 6 – uninstall the Windows update.

2. Navigate to “Programs and Features” and choose “View installed updates” from the left pane.

3. Select the problematic update from the list carefully and then click on the “Uninstall” button.

Method 7 – reset BIOS to default.

As I mentioned in the recovery part, you should restart your computer and press corresponding button (varies from computer to computer) to enter BIOS at first. Then, find the “Setup Defaults” option (which may also be called “Reset to Default”, “Factory Default” or something else). Select this option by using the arrow keys or pressing the corresponding button. Finally, save the changes and exit BIOS.

Method 8 – do a clean install or custom install.

If all the above methods failed, you still have another choice which has always been useful – perform a clean install or a custom install. The difference between them is that the former will erase everything saved on your computer while the latter will only erase some of the files.

That’s all the mainstream solutions to fixing Windows 10 not booting after BIOS update.

What to Look out for before Updating BIOS

If you’re not so familiar with BIOS and the updating process of it, you tend to make mistakes that will finally result in Windows startup problems. Considering this, I think it’s necessary to explain the functions and preparations of BIOS update.

Do I Need to Update My BIOS

What to Do before Updating Windows BIOS

Conclusion

As a general rule, BIOS update is an exciting thing since it could bring us some benefits. But, on the other hand, people may get into trouble due to wrong operations or unexpected accidents happened during the update. PC not booting after BIOS update is a common one and the theme of this article. You’d better read the corresponding recovery and repair solutions mentioned here, no matter if you’re suffering from PC boot failure caused by BIOS update at this moment or not.

If you still have other doubts or questions, please feel free to leave a message below or contact our Tech Support Team. Thanks for your time!