Windows 10 wont boot after installing ubuntu free download

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. I’m trying to install an Ubuntu dual boot on my windows 10 laptop. Windows 10 used the legacy BIOS setting. But since no alternative is offered other than simply giving up and not installing Linux I decided to proceed, and found that after install, GRUB only offered a Linux option. Depending on exactly what the warnings said, and what exact choices you made when installing Ubuntu, the installation process may have done one of a few things:.

This is the best option: you’ll just need to install a UEFI-style bootloader and you can then get back to Windows. This is a problem, since while Linux can do this, Microsoft says Windows won’t support this combination. However, returning to legacy-style Windows-only boot should be fairly easily doable in this case.

It may have taken the entire disk for Ubuntu, so your Windows installation was overwritten and no longer exists. This is the worst-case scenario: if you want Windows back, you’ll need to fully reinstall it and your existing Windows files will be gone. If your version of Linux fdisk isn’t too old, the output should include a line that says either. In the fdisk -l output, it is the partition that has its Type listed as EFI System and its size would typically be something in between M and M.

Now, get yourself a Windows 10 installation media. You won’t need the license code. Boot your computer from that installation media. Since your Ubuntu installed in UEFI mode, your computer will probably boot the Windows installer in UEFI mode automatically too, but in case you see two boot options for the installation media, only one of those options boots it in UEFI mode, and that’s the one you should pick.

Hopefully the boot menu will say which is which – it depends on your system’s UEFI firmware. When the Windows installer displays the initial screen with an «Install now» button in the middle of the screen, select instead «Repair your computer» near the bottom. This should display a list of partitions.

Note its volume number Volume in the leftmost column and assign an unused drive letter like X: for it. For example, if ESP is listed as Volume 2 :. It should say DiskPart successfully assigned the drive letter or mount point.

Then type exit to quit the DiskPart utility. If you want the Windows bootloader to use a language other than English, replace en-us in the command above with the appropriate Windows language code. Now type exit , remove the Windows installation media and reboot your system.

It should come up in Ubuntu just as before. Run sudo update-grub to update the GRUB boot menu. If you want to remove Ubuntu and go back to Windows-only system, just switch this one as the primary boot option, and the system should skip GRUB and boot into Windows by default.

Then you can remove the Linux partitions using Windows Disk Management. Okay so this definitely remains a windows question and really belongs on superuser. However in the interests of being helpful: from what you’ve written it sounds like the installer has changed the system of recording partitions on your hard disk. Your Windows boot loader was stored in the MBR the first sector on the hard drive along with the size and positions of your partitions.

This wasn’t an accident. The two partition tables cannot co-exist and this was a necessary step. IE: this is what you were warned about. I am not a windows expert, this is a linux forum.

But I guess from here you basically have two options:. As I say. From here try searching the web and asking on Superuser. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. Asked 2 years, 3 months ago. Active 6 months ago. Viewed 26k times. Is there a way for me to boot from Windows again? I don’t mind to uninstall ubuntu. Improve this question. Azhar Azhar 41 1 1 gold badge 1 1 silver badge 2 2 bronze badges. This is really a windows question.. But which Windows? Under Linux do try sudo update-grub — Philip Couling Apr 2 ’19 at Windows is booting from legacy and it’s windows 10 — Azhar Apr 4 ’19 at Add a comment.

Active Oldest Votes. Depending on exactly what the warnings said, and what exact choices you made when installing Ubuntu, the installation process may have done one of a few things: It may have converted the partitioning from MBR to GPT style to install UEFI-style, keeping or resizing the existing partitions. From the next menu, choose «Troubleshoot» and then «Command Prompt». Now, type in these commands: diskpart list vol This should display a list of partitions.

Work in progress – I’ll add the MBR restoration option later. Improve this answer. Mine shows Disklabel type: dos — Mohsin Bukhari Nov 6 ’19 at Try to reverse out try to revert back to MBR This is tricky and dangerous and still requires you to seek help from windows forums In theory you could note down the details of your partitions and try to replace GPT with MBR containing the same partitions Get this wrong and you could lose all your data so think very carefully before you try this.

Once you’ve replaced the partition table you would then need to re-install the windows bootloader to your MBR out of scope for this forum and I don’t know how As I say.

Philip Couling Philip Couling Thank you for your information — Azhar Apr 5 ’19 at Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Best practices for writing code comments. Featured on Meta.

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How To Install Ubuntu Linux Alongside Windows 10 (UEFI) « Everyday Linux User

 

Cancel Submit. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. In reply to NeerajA1’s post on August 13, Hi, Thank you for replying with the updated information on the issue. Method 1: Try running Boot Repair by Ubuntu and see if that helps. Method 2: Mark Windows partition as active and try booting Windows. Use the bootable media to boot the PC.

Now type diskpart hit enter. Note the partition on which Windows is installed Type select partition and hit enter. Now type active and hit enter. Windows 10 used the legacy BIOS setting. But since no alternative is offered other than simply giving up and not installing Linux I decided to proceed, and found that after install, GRUB only offered a Linux option. Depending on exactly what the warnings said, and what exact choices you made when installing Ubuntu, the installation process may have done one of a few things:.

This is the best option: you’ll just need to install a UEFI-style bootloader and you can then get back to Windows. This is a problem, since while Linux can do this, Microsoft says Windows won’t support this combination. However, returning to legacy-style Windows-only boot should be fairly easily doable in this case. It may have taken the entire disk for Ubuntu, so your Windows installation was overwritten and no longer exists.

This is the worst-case scenario: if you want Windows back, you’ll need to fully reinstall it and your existing Windows files will be gone. If your version of Linux fdisk isn’t too old, the output should include a line that says either. In the fdisk -l output, it is the partition that has its Type listed as EFI System and its size would typically be something in between M and M.

Now, get yourself a Windows 10 installation media. You won’t need the license code. Boot your computer from that installation media. Since your Ubuntu installed in UEFI mode, your computer will probably boot the Windows installer in UEFI mode automatically too, but in case you see two boot options for the installation media, only one of those options boots it in UEFI mode, and that’s the one you should pick.

Hopefully the boot menu will say which is which – it depends on your system’s UEFI firmware. When the Windows installer displays the initial screen with an «Install now» button in the middle of the screen, select instead «Repair your computer» near the bottom.

This should display a list of partitions. Note its volume number Volume in the leftmost column and assign an unused drive letter like X: for it. For example, if ESP is listed as Volume 2 :. It should say DiskPart successfully assigned the drive letter or mount point. If you have access to a Windows system, you can follow the instructions on the Microsoft website to create a bootable Windows media. Thankfully, a handy open source tool called Ventoy helps a lot in this case.

Please refer to the guide for detailed instructions. Next, download the latest Ventoy release. Extract the folder and run the VentoyWeb. It will give you the URL when you run it. Copy this URL and paste it in a browser.

It will open a web page with Ventoy running in it. Go for UEFI installation and hit the install button. Click on the unmount option from the file manager. So now that you have a bootable Windows USB, it will be a good idea to test it out and see if works.

How do you do that? Plug in the Windows USB, reboot your system. In some cases, you may have to disable secure boot from the BIOS settings. Close it and power down your system and then boot into Linux again. This check was necessary because you need to have a working bootable Windows USB. Without that, there will be no point in following the rest of the tutorial. But you cannot modify an already mounted partition in Linux.

When you are using Linux, your disk is mounted. This is why you need a live Linux USB. You boot from the live USB and make the necessary partition on the disk from the live session. First, download the ISO image of Ubuntu from its website. Any version of Ubuntu will work. On Ubuntu, you can find the Startup Disk Creator tool. You may also use Etcher on Linux. You can hold Shift at the very beginning of the boot process to see it.

GRUB will boot your Ubuntu system in a very minimal recovery mode menu, skipping the majority of the system services and all the graphical applications that load.

It will even load your file system in a safe read-only mode. Boot to the live media and start installing Ubuntu. When you perform a reinstall, the installer will keep all your personal files and settings. It will even keep your installed software packages, if possible. The Reinstall option will wipe away all your system-wide settings and return them to their defaults, but that should fix problems that misconfigured system settings could cause.

 

Boot-Repair – Community Help Wiki.

 

Initially my windows was running perfectly. Then i tried to dual boot it with ubuntu. After doing dual boot I’m not able to access windows. I’m getting a screen like this. I also tried using grub command but it didn’t work!! Thank you for writing to Microsoft Community Forums. I understand that how difficult it can be when Windows does not boot properly.

Since you are unable to boot Windows after installing Ubuntu, I would suggest you to try rebuilding BCD file and see if that helps. Create a bootable media and boot the PC using the media. If the issue persists, please get back to us with the results of the troubleshooting steps to assist you further.

Was this reply helpful? Yes No. Sorry this didn’t help. Thanks for your feedback. Thank you for replying with the updated information on the issue. I apologize for the delayed response. I would like to know if you are able to boot Ubuntu properly. I have been researching on the issue, and found some information from Ubuntu forums which might be helpful. Please follow the suggestions below and see if that works. Try running Boot Repair by Ubuntu and see if that helps.

Refer the article Boot-Repair. Here is some additional information on Dual Booting Windows and Ubuntu. Type the following commands and hit enter: select disk 0 0 is the disk on which Windows is installed.

Now type list partition and hit enter. Type select partition and hit enter. Note: is the number of the partition on which Windows is installed. As this will also help other people with similar issue in future. Choose where you want to search below Search Search the Community. Search the community and support articles Windows Windows 10 Search Community member.

This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Report abuse. Details required :. Cancel Submit. How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site. In reply to NeerajA1’s post on August 13, Hi, Thank you for replying with the updated information on the issue. Method 1: Try running Boot Repair by Ubuntu and see if that helps. Method 2: Mark Windows partition as active and try booting Windows. Use the bootable media to boot the PC. Now type diskpart hit enter. Note the partition on which Windows is installed Type select partition and hit enter.

Now type active and hit enter. Restart the PC. This site in other languages x.

 
 

grub2 – Unable to boot into Windows after installing Ubuntu, how to fix? – Ask Ubuntu.

 
 
› en-us › windows › forum › all › unable-to-boot-. Initially my windows was running perfectly. Then i tried to dual boot it with ubuntu. After doing dual boot I’m not able to access windows.