How To Install Ubuntu Alongside Windows 10

Brief: This detailed article shows you how to dual boot Ubuntu with Windows 10, step-by-step, accompanied with proper screenshots.

Previously I had written about dual booting Ubuntu Linux with Windows 7 and 8, but those tutorials did not cover systems that come with Windows 10 pre-installed. The newer systems that come with Windows 8 or Windows 8.1, have UEFI instead of BIOS. This makes thing a little different from the conventional way of dual booting.

In this tutorial, we shall see how to install Ubuntu with Windows 10 already installed.

This tutorial is performed on a newly bought Dell Inspiron 7437 that has Core i7 fourth generation processor, 256 GB SSD, 8 GB RAM and built in 1 GB Intel graphics. I’ll cover all the steps you need to do in order to successfully dual boot Linux with Windows 10 UEFI. If you have already done some of these steps, just skip to the next one. If you have a fresh system, even better.

The steps mentioned here are applicable to other Ubuntu based Linux distributions such as Linux Mint, Elementary OS etc. Cutting the chit-chat, let’s see how to dual boot Linux on a UEFI secure boot enabled Windows 10 system.

Dual boot Ubuntu with Windows 10 and Windows 8.1:

Though I have used Ubuntu 14.04 here, it is applicable to all versions of Ubuntu, be it Ubuntu 15.10 or Ubuntu 16.04. There are various prerequisites to install Ubuntu on a UEFI system. I’ll list them for easier read here:

• Ubuntu ISO burned to a USB or DVD (we’ll see it)
• Windows backup (optional)
• Windows 10 bootable USB (optional yet recommended as it will save your day if anything goes wrong)

Let’s see the steps of installing Ubuntu along side Windows 10.

Step 1: Make a backup [optional]

It is always nice to make a back up, just in case if you mess up with the system. There are numerous articles on the web to show you how to backup your system. You can follow this tutorial here.

Step 2: Create a live USB/disk of Ubuntu

The next thing you need to do is to create a live USB or disk. I recommend Universal USB Installer to create a live USB of Linux OS in Windows.

Step 3: Make a partition where Ubuntu will be installed

Assuming tat you have a fresh system, the first thing we need to do is to make a partition to install Linux. The 256 GB in my system was already had several partitions from manufacturer but mainly for backup and other purposes. Main partition was C drive, of around 220 GB, where Windows 8.1 was installed.

If you have just one partition like this, you need to make some free space out of it for Linux. If you have several partitions of considerable size, use any of them except C drive because it may erase the data.

To make a partition in Windows 8, go to Disk Management tool. You can find disk management tool by searching for ‘disk’ in Control Panel.

In the Disk Management tool, right click on the drive which you want to partition and select shrink volume. In my case, I shrank the C drive to make some free space:

You can leave the free space as it is. We shall use it while installing Ubuntu.

Step 4: Disable fast startup in Windows [optional]

Windows 8 introduced a new feature called “fast startup” for quick boot. While it is not mandatory, it would be better to have it disabled.

Go to Control Panel > Hardware and Sound > Power Options > System Settings > Choose what the power buttons do and uncheck the Turn on fast startup box.

Step 5: Disable secureboot in Windows 10 and 8.1

This is the most important step. The new secure boot feature of Windows 8, originally intended for security feature for rootkit viruses, prevents dual booting of Windows with Linux. To dual boot Windows 8 with Linux, we must disable secure boot in UEFI.

Step 6: Installing Ubuntu along with Windows 10, 8.1

Once you have disabled secure boot, it’s time to install Ubuntu. I hope you already created the live USB as mentioned in step 2. Plug in the USB and boot the system from it.

To boot from USB, will have to choose boot from USB option from within Windows itself. Either with PC Setting (like for UEFI) or pressing shift key while clicking on Restart.

Once you have booted in the live USB, you will be presented with option to try or install Ubuntu. Click on install. You will be presented with few screen options to choose the language. It will then do some checks on available space, power and internet connection etc. Just click on Continue.

The main screen which you should pay attention to is Installation Type. Choose Something else here:

Remember we had created some free space beforehand? We shall use the free space to create Root, Swap and Home. Select the free space and click on the + sign.

It will provide you with option to create Linux partition. We are creating the Root partition. Any thing above 20 GB is more than sufficient for it. Choose the size, select Ext 4 as file type and / (means root) as the mount point.

Clicking on OK in previous step will bring you to the partition screen. Next we will create swap. Like previously, click on the + sign again. This time use the file type as Swap area. Suggestible swap size is double of RAM.

In similar fashion, create a Home partition. Allocate it maximum space (in fact allocate it rest of the free space) because this is where you’ll save music, pictures and downloaded files.

Once you are ready with Root, Swap and Home, click on Install Now:

Well, you have almost won the battle. You can smell victory now. Next you will be asked to set username password etc. Basically, you just need to click next now.

Once the installation is completed, restart the computer, you should be welcomed by a purple grub screen. Enjoy Ubuntu along with Windows 10 in dual boot mode.

Note: If after installing Ubuntu, you boot directly in Windows, check in UEFI settings for changing the boot order.

I hope this guide helped you to dual boot Ubuntu with Windows 10 UEFI. If you want to reverse the process, follow this guide to remove Ubuntu from dual boot with Windows. Though this article is written for Ubuntu, it should be helpful for other Linux OS as well. Any questions or suggestions are always welcomed.

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How to Install Linux Mint 20 Alongside Windows 10 or 8 in Dual-Boot UEFI Mode

Linux Mint 20 has been released in wild by the Linux Mint project development team as a new long term support edition which will receive support and security updates until 2025.

This tutorial will guide you on how you can install Linux Mint 20 in dual-boot with a variant Microsoft Operating System, such as Windows 8, 8.1 or 10, on machines with EFI firmware and a pre-installed version of Microsoft OS.

If you’re looking for a non-dual-boot installation on Laptop, Desktop, or Virtual Machine, you should read: Installation Guide of Linux Mint 20 Codename ‘Ulyana’.

Assuming that your laptop or desktop system comes pre-installed with Windows 10 or Windows 8.1 or 8 you should enter the UEFI menu and disable the following settings: Secure Boot and Fast Boot features.

If the computer has no pre-installed OS and you intend to use Linux and Windows in dual-boot, first install Microsoft Windows and then proceed with Linux Mint 20 installation.

Download Linux Mint 20

In case you own a UEFI computer stay away from the 32-bit version of Linux Mint because it will only boot and work with BIOS machines, while the 64-bit ISO image can boot with BIOS or UEFI computers.

Step 1: Shrink HDD Space for Dual-Boot

1. In case your computer comes pre-installed with Microsoft Windows on a single partition, logon to Windows system with a user who has administrator privileges, press [Win+r] keys to open run prompt and type the following command in order to open Disk Management tool.

Open Windows Disk Management

2. Right-click on C: partition and select Shrink Volume in order to resize the partition. Use a value best-suited for you, depending on your HDD size, on the amount of space to shrink MB field (minimum 20000 MB recommended) and hit Shrink button to start the process of resizing the partition.

Shrink Windows Partition

3. When the process finishes a new unallocated space will appear on the hard drive.

Unallocated Partition for Linux Mint Install

Close Disk Management utility, place Linux Mint DVD or USB bootable image in the appropriate drive, and reboot the computer in order to start with Linux Mint 20 installation.

In case you’re booting Linux Mint for installation from a USB dive in UEFI mode make sure you’ve created the bootable USB stick using a utility such as Rufus, which is UEFI compatible, otherwise your USB bootable drive won’t boot.

Step 2: Installation of Linux Mint 20

4. After reboot, press the special function key and instruct the machine firmware (UEFI) to boot-up from the appropriate DVD or USB drive (the special function keys usually are F12 , F10 or F2 depending on the motherboard manufacturer).

Once the media boot-up a new screen should appear on your monitor. Choose Start Linux Mint 20 Cinnamon and hit Enter to continue.

Select Start Linux Mint Cinnamon Install

5. Wait until the system loads into RAM in order to run in live-mode and open the installer by double-clicking on Install Linux Mint icon.

Select Install Linux Mint

6. Choose the language you wish to perform the installation and click on the Continue button to proceed further.

Select Installation Language

7. Next, you should select your keyboard layout and click on the Continue button.

Select Keyboard Layout

8. On the next screen hit on the Continue button to proceed further. Third-party software (multimedia codes) can be automatically downloaded and installed on this step by checking the check-box.

The recommendation would be to leave the box unchecked for the moment and manually install proprietary software later after the installation process completes.

Install Multimedia Codecs

9. At the next screen, you can choose the Installation Type. If Windows Boot manager is automatically detected you can choose to Install Linux Mint alongside Windows Boot Manager. This option ensures that the HDD will be automatically partitioned by the installer without any data loss.

The second option, Erase disk and install Linux Mint, should be avoided for dual-boot because is potentially dangerous and will wipe out your disk.

For a more flexible partition layout, you should go with Something else option and hit on the Continue button to proceed further.

Select Linux Mint Installation Type

10. Now let’s create the partition layout for Linux Mint 20. I would recommend that you create three partitions, one for / (root) , one for /home accounts data and one partition for swap .

First, create the swap partition. Select the free space and hit on the + icon below. On this partition use the following settings and hit OK to create the partition:

Select Free Space Create Swap Partition

11. Using the same steps as above create the /(root) partition with the below settings:

Create Root Partition

12. Finally, create the home slice with the below settings (use all the available free space to create home partition).

Home partition is the place where all documents for user accounts will be stored by default, except the root account. In case of system failure, you can reinstall the operating system for scratch without touching or losing the settings and documents of all users.

Create Home Partition

13. After finishing creating the partition layout, select the Windows Boot Manager as the device for installing the Grub boot loader and hit on Install Now button in order to commit changes to disk and proceed with the installation.

Next, a new pop-up window will ask you if you agree with committing changes to disk. Hit on Continue to accept changes and the installer will now start to write changes to disk.

Install Linux Mint Accept Write Changes to Disk

14. On the next screen choose your nearest physical location from the map and hit Continue.

Select Country Location

15. Enter a username and a password for the first account with root privileges, choose your system hostname by filling the computer’s name field with a descriptive value and hit Continue to finalize the installation process.

Create New User

16. The installation process will take a while and when it reaches the final step it will ask you to hit on the Restart Now button to complete the installation.

Linux Mint Installation Process

17. After reboot, the system will first boot-up in Grub, with Linux Mint as the first boot option which will be automatically started after 10 seconds. From here you can further instruct the computer to boot in Windows or Linux.

Select Linux Mint Cinnamon

On computers, with newer UEFI firmware the Grub boot loader won’t be displayed by default and the machine will automatically boot-up in Windows.

In order to boot into Linux, you must press the special function boot key after the restart and from there to further select what OS you wish to start.

In order to change the default boot order enter UEFI settings, select your default OS and save the changes. Review the vendor’s manual in order to detect the special function keys used for boot or for entering UEFI settings.

18. After the system finishes loading, log in to Linux Mint 20 by using the credentials created during the installation process. Fire-up a Terminal window and start the update process from the command line by running the following commands:

Update Linux Mint

That’s it! You have successfully installed the latest version of Linux Mint 20 on your device. You will find the Linux Mint platform to be very robust, fast, flexible, enjoyable, easy to use, with a ton of software required for a normal user already installed and very stable.

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