how to repair dual boot windows 10 and ubuntu

Solution 1: Repair from Windows – Command Prompt.

• In Windows go to menu and search for Command prompt.
• Right click on Command Prompt and choose the option Run as administrator.
• Copy and paste the command bcdedit /set {bootmgr} path EFIubuntugrubx64.efi.
• Restart your computer.

Full Answer

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 to run Windows 10 Startup Repair?

The Tutorial to Launch Startup Repair in Windows 10

1. Boot to Advanced Startup Options.
2. Click/tap on Troubleshoot.
3. Click/tap on Advanced options.
4. Click/tap on Startup Repair.
5. If prompted, select an administrator account to provide credentials for approval. ...
6. Start Repair will now start "Diagnosing your PC", and attempt to automatically repair it.

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How do I install Ubuntu on Windows 10?

Install Ubuntu Using VirtualBox

1. The name of your virtual machine will now appear on the left side of the VirtualBox Manager. ...
2. This time, you have to select your Ubuntu ISO file that you downloaded earlier. Now, click on the folder icon and then click on the "Add" button.
3. Now, click on the "Install Ubuntu" button to proceed.

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How to fix a Windows 10 automatic repair loop?

• Windows Resource Protection did not find any integrity violations. ...
• Windows Resource Protection could not perform the requested operation. ...
• Windows Resource Protection found corrupt files and successfully repaired them. ...
• Windows Resource Protection found corrupt files but was unable to fix some of them. ...

How do you fix Ubuntu failed to boot after installing or dual booting with Windows 10?

Replies (3) Create a bootable media and boot the PC using the media.On the Install Windows screen, select Next > Repair your computer.On the System Recovery Options screen, select Troubleshoot> Advanced options > Command Prompt.Now type in the commands and hit enter: BOOTREC /FIXMBR. BOOTREC /FIXBOOT. ... Restart the PC.

How do I repair Windows 10 with Ubuntu?

Use the Boot Repair utility on Ubuntu. Download Ubuntu live distro version. Mount it to your USB. ... Fix Windows 10 bootloader within the Terminal. Boot again with the bootable USB drive. Open Terminal. ... Try fixing it with LILO. Boot again with the bootable USB drive. Open Terminal.

How do I fix a dual boot problem?

Windows Setup CD/DVD Required!Insert the installation disc in the tray and boot from it.At the Welcome screen, click on Repair your computer. ... Choose your operating system and click Next.At the System Recovery Options screen, click Command Prompt. ... Type: bootrec /FixMbr.Press Enter.Type: bootrec /FixBoot.Press Enter.More items...

How do I restore Windows 10 bootloader after deleting Linux and Grub loader?

Step-by-step ProcedureRun Windows. Start computer and select Windows OS from bootloader. ... Delete Linux drive. Right-click on “Start” button and select “Data Management”. ... Assign unallocated space to Windows 10. ... Open Command Line in Boot mode. ... Fix MBR. ... Fix boot. ... Scan Windows disks. ... Rebuild BCD.More items...•

How do I run boot repair?

Method 1: Startup Repair toolStart the system to the installation media for the installed version of Windows. ... On the Install Windows screen, select Next > Repair your computer.On the Choose an option screen, select Troubleshoot.On the Advanced options screen, select Startup Repair.More items...•

How do you fix Windows boot after installing Linux?

Enter Windows recovery mode by pressing "esc"(may be different way on your computer) while booting.Click on "Troubleshoot"Click "Advanced options"Choose "Command Prompt"Type the following commands: bootrec /fixmbr bootrec /fixboot bootrec /scanos bootrec /rebuildbcd.Now restart your computer.

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 reinstall Ubuntu on a dual boot system?

Here are the steps to follow for reinstalling Ubuntu.Step 1: Create a live USB. First, download Ubuntu from its website. You can download whichever Ubuntu version you want to use. Download Ubuntu. ... Step 2: Reinstall Ubuntu. Once you have got the live USB of Ubuntu, plugin the USB. Reboot your system.

Is it safe to dual boot Windows 10 and Ubuntu?

Dual Booting Windows 10 and Linux Is Safe, With Precautions But nothing here should put you off dual booting. Ensuring your system is set up correctly is important and can help to mitigate or even avoid these issues. Backing up data on both partitions is wise, but this should be a precaution you take anyway.

How do I remove grub and restore Windows bootloader?

You just have to go to Troubleshoot > Advanced options > Command Line and run bootsect /nt60 c: /mbr . Grub will be gone in an instant....To remove it:Hit Windows + X and select Disk Management .Find the Ubuntu partition. ... Be sure you have the correct partition!More items...

How do I get my Windows bootloader back?

Windows 10Insert the Media (DVD/USB) in your PC and restart.Boot from the media.Select Repair Your Computer.Select Troubleshoot.Select Advanced Options.Choose Command Prompt from the menu : Type and run the command : diskpart. Type and run the command : sel disk 0. Type and run the command : list vol.

How do I reinstall Windows bootloader grub?

Now, for you to reinstall the Windows Boot Loader, you need to use the Windows disk or ISO file and change your boot settings in the BIOS. Save the changes and reboot your computer from the Windows DVD. After a few moments, you should see the install setup screen. Select your preferred language, then click Next.

Can Ubuntu boot but not Windows?

If you install Ubuntu in legacy mode, you won't be able to boot to Windows 10 simply because you installed the two operating systems under two different modes. Make sure that both operating systems are installed in UEFI mode so that you can boot booth of them.

How do I fix the MBR in Windows 10?

Fix the MBR in Windows 10Boot from the original installation DVD (or the recovery USB)At the Welcome screen, click Repair your computer.Choose Troubleshoot.Choose Command Prompt.When the Command Prompt loads, type the following commands: bootrec /FixMbr bootrec /FixBoot bootrec /ScanOs bootrec /RebuildBcd.More items...

How do you fix grub on Windows?

How do I fix Windows 10 Grub Rescue errors?Clean Install Windows 10. ... Set the correct partition. ... Reset BIOS Settings. ... Use Windows 10 Automatic Repair to restore the Boot Sector Code. ... Rebuild BCD using Windows 10 Automatic Repair. ... Clean Install Windows 10. ... Replace Hard Drive.

How do I get to grub menu?

With BIOS, quickly press and hold the Shift key, which will bring up the GNU GRUB menu. (If you see the Ubuntu logo, you've missed the point where you can enter the GRUB menu.) With UEFI press (perhaps several times) the Escape key to get grub menu. Select the line which starts with "Advanced options".