how to repair efi bootloader in windows 10

[Solution] How to Fix EFI Bootloader Windows 10

1. Method 1. Use bootable disk to repair EFI bootloader on Windows 10/8/7. If you are having Windows EFI bootloader...
2. Method 2. Fix EFI bootloader in Windows 7. The ways to fix EFI bootloader are very different with or without...
3. Method 3. Repair EFI bootloader in Windows 10/8. Windows 10/8.1/8 users can also have two access to fix repair EFI...

Full Answer

How do I repair Windows 10?

Try these methods:

• Method 1: Run the DISM and SFC tool. ...
• Method 2: Perform the Windows automatic Startup Repair tool. ...
• Method 3: Perform a System Restore. ...
• Method 4: Update all your available device drivers. ...
• Method 5: Reset Windows 10 on your computer. ...

Who to repair Windows 10?

• In the search box on the taskbar, type Control Panel and select it from the results.
• Select Programs > Programs and Features.
• Right-click the program you want to fix and select Repair, or if that’s not available, select Change. Then follow the directions on the screen.

How to fix and repair MBR in Windows 10?

Step-by-step guide to open command Prompt to fix MBR in Windows 10:

1. Boot PC from the original Windows installation DVD (or the recovery USB).
2. At the Install screen, click "Repair your computer".
3. Choose "Troubleshoot" > "Advanced Options" > "Command Prompt".
4. Enter the following lines in Command Prompt and hit Enter each time: bootrec /fixmbr bootrec /fixboot bootrec /scanos bootrec /rebuildbcd

More items...

How to fix Windows 10 not booting?

Windows 10 Not Booting After Update

• Revert Installed Updates. Wait patiently for the Windows 10 booting procedure to begin after turning on your machine. ...
• Recover Using Startup Repair. Windows 10 will not start can be fixed by running automatic startup repair in the recovery environment.
• Boot in Safe Mode. ...
• Checking For Errors Using Command Prompt. ...
• Check Errors in Hard Drive. ...

How do I fix UEFI bootloader?

Fix #1: Use bootrecInsert the original Windows 7 installation CD/DVD and boot from it.Select a language, keyboard and click Next.Select the operating list (Windows 7) from the list and click Next.At the System Recovery Options screen, click Command Prompt. ... Type: bootrec /fixmbr.Press Enter.Type: bootrec /fixboot.More items...

How do I boot from EFI in Windows 10?

To boot to UEFI or BIOS:Boot the PC, and press the manufacturer's key to open the menus. Common keys used: Esc, Delete, F1, F2, F10, F11, or F12. ... Or, if Windows is already installed, from either the Sign on screen or the Start menu, select Power ( ) > hold Shift while selecting Restart.

How do I rebuild Windows bootloader?

Automatic Windows Bootloader Repair with WinREBoot your device from the recovery disc or Windows 10/11 installation media;Click the Restore System on the installation screen;Then select Troubleshoot -> Startup Repair and select the OS whose bootloader you want to try to repair;More items...•

How do I fix EFI Microsoft boot BCD?

File :\EFI\Microsoft\Boot\BCD Error code: 0xc0000034Insert the Windows installation disc in the disc drive or connect USB media and then start the computer.Press a key when you are prompted.Select a language, a time, a currency, a keyboard or an input method, and then click Next.Click Repair your computer.More items...

What is EFI bootloader?

A file with the EFI file extension is an Extensible Firmware Interface file. They are boot loader executables, exist on UEFI (Unified Extensible Firmware Interface) based computer systems, and contain data on how the boot process should proceed.

Is EFI and UEFI the same?

The Unified EFI (UEFI) Specification (previously known as the EFI Specification) defines an interface between an operating system and platform firmware.

How do I recreate EFI partition?

More secure way to restore EFI partition in Windows 10Select the system backup task and click "Next". ... Select to restore entire backup or a part and click "Next".Confirm operations on the “Operation Summary” page and click on “Start Restore” button.Restart your computer to boot from the original hard drive.

How do I boot from EFI?

You can boot from an EFI file by pressing the F9 key to launch the Boot Devices Options menu. All available boot options are listed on the Boot Option menu. Selecting Boot from EFI File presents a file explorer screen that lists all available file system mappings.

How do I fix a corrupted boot file?

Next, follow these steps:Insert your installation media into the computer.Boot to the media. ... Click Next on the Windows Setup menu.Click "Repair your computer."Choose Troubleshoot.Select "Advanced options."Pick "Command Prompt."Type Bootrec /fixmbr and press the enter key.More items...•

How do I manually rebuild my BCD?

To do this, please follow the steps below.Press F8 during your computer's startup (before starting Windows). ... Select the operating system you want to repair, click next.In the system recovery options, click "Command Prompt".Type at the prompt, Bootrec / RebuildBcd, and then press enter.

How do I run a repair on Windows 10?

Use a fix-it tool with Windows 10Select Start > Settings > Update & Security > Troubleshoot, or select the Find troubleshooters shortcut at the end of this topic.Select the type of troubleshooting you want to do, then select Run the troubleshooter.More items...

How do I find my EFI partition Windows 10?

Use the windows hotkey Windows+R to open the Run window. Type Diskmgmt. msc and press the Enter key. The Disk management will open, and you can identify EFI partitions from there also.

How do I boot from an EFI file?

You can boot from an EFI file by pressing the F9 key to launch the Boot Devices Options menu. All available boot options are listed on the Boot Option menu. Selecting Boot from EFI File presents a file explorer screen that lists all available file system mappings.

How do I boot into EFI?

Boot into UEFI from Settings AppSearch for “Settings” in the Start menu and open it. ... In the Advanced start-up screen, go to “Troubleshoot -> Advanced options” and click on the “UEFI Firmware Settings” option.On the next screen, click on the Restart button to be taken to the UEFI screen.

How do I boot with EFI shell?

To access the UEFI menu, create a bootable USB media:Format a USB device in FAT32.Create a directory on the USB device: /efi/boot/Copy the file shell. efi to the directory created above. ... Rename the file shell.efi to BOOTX64.efi.Restart the system and enter the UEFI menu.Select the option to Boot from USB.

How do I boot into UEFI BIOS?

Press F2 when prompted to enter BIOS menu. Navigate to Boot Maintenance Manager -> Advanced Boot Options -> Boot Mode. Select the desired mode: UEFI or Legacy. Press F10 then press Y to Save Changes and Exit, the system will save the changes and reboot.

My EFI bootloader stop working. I tried to repair it and created a bootable flash drive, but my computer gives me an error while loading the Windows recovery environment. What should I do?

First of all, make sure that you have created a bootable flash drive correctly. To do that, read the article on our website on how to create a boo...

I can't enter the BIOS on my computer to set up booting from a flash drive. Help me pleace.

Depending on the manufacturer, different keys may be used to enter the bios. After you turn the power on the screen you will see which key you shou...

I accidentally entered a command incorrectly. Do I have to start all over again or can I just enter the correct command and continue with the boot loader recovery?

You don't need to start the restore again. The command prompt will show an error, after that just type the command again and press "Enter"

I have little experience with computers and I'm not sure if I can use RS Partition Recovery. At the same time, I need to recover data that I accidentally deleted. What should I do?

RS Partition Recovery has an intuitive interface so even inexperienced users can use it. Besides, if you encounter any difficulties, the Recovery S...

My EFI boot loader stopped working. What is better for me to do: repair it or reinstall the system?

It is easier and faster to restore your EFI boot loader, because when you reinstall your operating system, all data from your C drive will be lost....

The Boot Configuration Data For Your PC Is Missing: Efi\Microsoft\Boot\Bcd

If the bootloader in Windows on UEFI system is corrupted – it’s impossible to start the system or user facing a blue screen with the following erro...

Automatic Windows Bootloader Recovery

The procedure for automatic recovery of the bootloader, which is used in the Windows Recovery Environment (WinRe), is usually powerless in such cas...

Manually Restoring The Windows 10/ 8 Bootloader Using The Installation Media

Let’s proceed to the procedure of manual recovery of the EFI boot loader on Windows 10 / 8.1.So to recover the loader (BCD) configuration, you have...

What is an EFI file?

EFI files are Bootloader executables , exist on UEFI (Unified Extensible Firmware Interface) based computer systems, and contain data on how the boot process should proceed. If UEFI Bootloader is damaged or lost, you cannot boot the computer. In this case, you should repair UEFI Bootloader.

How to use Bootrec.exe?

To use Bootrec.exe, you have to enter into Windows RE. You can follow the steps below to run Windows 10 Bootloader repair. Step 1. Insert Windows 10 installation media and boot from it . If you don’t have Windows 10 installation media, you can download Windows 10 Media Creation tool to create one. Step 2.

Can I repair Windows 10 UEFI bootloader?

Besides using Bootrec.exe, you can also repair Windows 10 UEFI Bootloader with AOMEI Partition Assistant. This software allows you to make a bootable USB drive and run Windows Bootloader repair without CD. The bootable USB allows you to enter into Window PE to check disk error and fix MBR.

Can you use rebuild MBR to repair bootloader?

Also, you can use Rebuild MBR to repair Bootloader. After solving the issue, it is recommended to make a system image backup. If there is any issue happens to your computer, you can restore it to an earlier state. In addition, AOMEI Partition Assistant has many other useful features as you can see in the picture.

Why is it easier to restore EFI bootloader?

It is easier and faster to restore your EFI boot loader, because when you reinstall your operating system, all data from your C drive will be lost. In addition, you will have to reconfigure the system, install drivers, etc. So it is best to try to restore the bootloader first, and if that fails, consider other options.

Why is it important to know how to repair a bootloader?

Whatever the reason for damaging the boot loader, it is important to know how to repair it, because quite often you can fix the situation yourself, without having to go to a specialist.

How to make a Windows 10 bootable flash drive?

You can read about how to create a bootable Windows 10 flash drive in this article. Step 2: On the installation screen, click “Repair your computer” or press the key combination “Shift + F10”; Step 3: In the window that appears, select “Troubleshoot”. Step 4: Click the “Advanced options” button.

How big is Windows 10 recovery volume?

By default (i.e., when you install Windows on a UNFORMATED disk), the first two partitions have a clear size. In Windows 10, for example, they are 100MB and 128MB, respectively, and so it’s easy to separate them as needed, based only on the size of both.

How to repair bootloader?

The procedure for the automatic repair of the bootloader used in the Windows Recovery Environment (WinRE), is usually useless in such cases. But it’s worth a try anyway: 1 Try to boot your device from the recovery disc or installation Windows 10 media; 2 On the installation screen, click the Restore System; 3 Then select Troubleshoot -> Startup Repair and select the OS whose bootloader you want to try to recover; 4 But most likely the result will be negative: Automatic Repair couldn’t repair your PC.

Does bcdedit see EFI partition?

The bcdedit tool doesn’t see this EFI partition, and cannot manage the bootloader configuration on it. If the computer boots with a black screen with the message “Operating System not found”, most likely the Windows bootloader is completely removed. Follow the instructions on the link.

Can I use an EFI bootloader on a GPT partition?

The point is that the EFI bootloader is used only on disks with a GPT partition table. If the disk has an asterisk ( *) in the Gpt column, then the GPT partition table is used, if not, the MBR is used. If your disk uses a GPT partition table, follow the steps below in the instructions to repair the Windows EFI bootloader.

How to recover bootloader?

Automatic Windows Bootloader Recovery 1 First, we try to boot the device from the recovery disc or install Windows 10 media. 2 Next, on the installation screen, we click the Restore System. 3 Then we select Troubleshoot >> Startup Repair and we select the OS whose bootloader we want to try to recover. 4 However, most likely the result will be negative: Automatic Repair couldn’t repair your PC.

Why is my bootloader corrupted?

It may occur due to incorrect actions during Windows recovery, removal of some data on hidden partitions, malicious software (virus, ransomware, etc.) and for some other reasons.

How to fix UEFI bootloader?

1. Restart your Windows PC and tap rapidly on the F8 key before the Windows splash screen appears. 2. Select Repair your computer->Command Prompt. The next steps are the same with the Windows 7 Installation media method, which is from the above step 5 to step 8. >>Repair EFI/UEFI Bootloader in Windows 8/8.1/10.

What is EFI in Windows 10?

The E FI (Extensible Firmware interface), which has been deprecated by Intel, is the predecessor of UEFI.. It replaces the Basic Input/Output System (BIOS) firmware interface, but the UEFI/EFI firmware implementations provide legacy support for BIOS services. The Bootloader is a program that loads the Windows 10/8/7 operating system ...

What is UEFI in BIOS?

The UEFI (United Extensible Firmware Interface) is an updated version of BIOS which defines an interface between an operating system and platform firmware. The interface consists of data tables that provide a standard environment for booting an OS and running pre-boot applications. The EFI (Extensible Firmware interface), ...

How to make bootable media with Windows 10?

1. Choose an empty USB flash drive (the capacity should be larger than 13GB) or external hard drive to make bootable media with a working Windows 10/8/8.1/7 PC, which has the same operating system and EFI/UEFI as yours. 2.

How to repair MBR?

How to repair your MBR (Main Boot Record) These steps apply to any legacy drive used as a boot drive on any recent Windows Operating System. Use the F12 key at the Dell Splash screen to enter the boot menu. It lets you boot from the Windows installation media or a bootable disk or flash drive.

How to fix a Dell laptop?

How to repair your MBR (Main Boot Record) 1 Use the F12 key at the Dell Splash screen to enter the boot menu. It lets you boot from the Windows installation media or a bootable disk or flash drive. 2 Click the Repair your Computer link at the bottom of the Install Now screen. 3 Click Troubleshoot. 4 Select Command Prompt 5 Enter the following three commands in turn, following each by pressing the Enter key:#N#bootrec /fixmbr#N#bootrec /fixboot#N#bootrec /rebuildbcd 6 Restart the computer with the installation media removed to check if the repair worked.