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Dual boot New Ubuntu 17.10 with Windows10 and Windows 8.1

This articles is for all the Linux lovers and people who can’t quit using windows at the same time, so here are easy and quick steps to dual boot Ubuntu 17.10 with windows 10. 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 Windows10 and Windows 8.1:
Though I have used recently released Ubuntu 17.10 here, it is applicable to all versions of Ubuntu. There are various prerequisites to install Ubuntu on a UEFI system. I’ll list them for easier read here:
·      Ubuntu 17.10 ISO burned to a USB.
 ISO download               Torrent Download
·      Windows 10 already installed in the system.
Let’s see the steps of installing Ubuntu along-side Windows 10.
Step 1: Create a live USB/disk of Ubuntu
 The next thing you need to do is to create a live USB or disk. I recommend Rufus to create a live USB of Linux OS in Windows.

Step 2: Make a partition where Ubuntu will be installed
Assuming that you have a system in which windows is already installed, the first thing need to do is make a separate partition to install Linux. You can make a new partition by resizing some other partitions using Gparted in Ubuntu live cd.
If you have several partitions of considerable size, use any of them except C drive because it may erase the data. Are you unable to get how to do partition? Don’t worry it’s covered in later steps with full elaboration J

Step 3: Installing Ubuntu dual booted with Windows 10
Let’s see how to get it working

I hope you have already created the live USB as mentioned in step 1. Plug in the USB and boot the system from it.
To boot from USB, we need to press boot options key (F12 – differs on other system) on system startup. Then select USB from Legacy or UEFI mode in which windows is installed.

Once you have booted in the live USB, you will be presented with option to try or install Ubuntu Select It.

Then Ubuntu will open where you need to open app drawer and search for gparted for doing the partition.

Once gparted open you will see all the partitions in your hard drive now you need to find partition which you can shrink out for creating a new fresh partition in which Ubuntu will install. Be, sure you should never try to shrink partition in which windows is installed because this can cause data loss and if there is no choice except it then first backup your data.  
After finding the partition which you need to shrink then right click on it and select Resize/Move.

Now, with the help of your mouse adjust the size of new partition and click Resize/Move.

Unallocated space of shrink partition will appear right click on it and select create partition as primary/extended and File system type: Ext4 and click add button.  

Now we got newly created partition, click on apply all operations button. A popup window will open click on apply then your process for partitioning done.

After partition work is done we are finally installing our Ubuntu in our newly created partition, Click on Install Ubuntu 17.10 icon on Desktop.

You will be presented with few screen options to choose the language. It will then show preparing to install etc. Just click on Continue.

The main screen which you should pay attention to is Installation Type. As said above we won’t be installing both operating system in the same drive so you will select something else and click continue.

Remember we had created new ext4 partition beforehand? We shall use the partition for installing Ubuntu. Select partition and press enter.

A popup window will open now in Use as select Ext4 journaling system, click format the partition and in Mount Point type / {root}. Click ok button.

Now it’s done for setting up mount point, click Install Now Button, a warning will appear for partition format click continue.

Select your time zone and click continue.

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.

I hope this guide helped you to dual boot Ubuntu with Windows 10 UEFI. 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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