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How to Install Chrome OS (with Play Store) and Dual Boot with Windows

Windows 11 is a pretty new OS that Microsoft released recently, and most of us have already upgraded to it or looking forward to upgrading. But there are other OS, which are getting upgrades too. Come to think of it, Chrome OS feels like an operating system you should run alongside Windows. Why? Because you can dual boot Chrome OS and Windows together by installing them on the same hard drive.

Chrome OS is known for its performance, while Windows 11 is a versatile operating system. To add the cherry on the top, Chrome OS also supports Google Play Store and Linux apps. Having both OS together on a single machine is advantageous as well as a fun thing in itself. Sounds interesting, right? If it’s a yes, then this tutorial is for you. Today, we’ll learn how to install and run Chrome OS alongside Windows 10 or Windows 11 PC. Let’s get started!

Install and Dual Boot Chrome OS and Windows 11

Before we begin, I would like to mention that this tutorial involves complex operations and a lengthy procedure. Go ahead only if you are good with operating multiple systems. Apart from that, this guide won’t touch any of your Windows files, but I highly recommend that you back up all your crucial files because you never know when things go wrong.

Pre-requisites

  • A USB flash drive with a minimum of 16GB of storage space is a must.
  • UEFI Firmware support is another requirement for Brunch to work. It also works with legacy BIOS, but there are a few limitations. You can read them on the Brunch development page.
    1. To check whether your PC supports UEFI or MBR/BIOS, search System Information in the start menu and open it.
    2. Look for the BIOS mode. You’ll find your PC firmware type mentioned against it.

  • Intel hardware (CPU and GPU) starting from 1st generation Nehalem architecture. Note that Intel first-generation graphics do not work with ChromeOS versions above r81.
  • AMD Ryzen CPU and GPU. Currently supports AMD Ryzen and AMD Stoney Ridge processors only.

Downloads

We need the following components for flashing Chrome OS on your Windows PC hard drive.

1. Linux Mint

We’ll use the Linux Mint Cinnamon image for dual-booting Chrome OS and Windows 10 or Windows 11 PC. You can use other Linux distros like Ubuntu or Debian too. However, I won’t recommend using them since many users reported that they are facing various errors while installing and booting Chrome OS.

Download Linux MintCinnamon Edition

Linux Mint to Dual Boot Chrome OS and Windows 11 (Supports Play Store)

2. Rufus

Rufus is a windows utility that helps create bootable USB flash drives. Here, the purpose of using Rufus is to flash the Linux Mint image on the USB storage.

Download Rufusfor Windows

Rufus download page

3. Brunch Framework

The purpose of the brunch framework is to build a generic Chrome OS image from an official recovery image. It uses a 1GB ROOTC partition (containing an initramfs, a custom kernel, the swtpm binaries, userspace patches, and config files) and a specific EFI partition to boot from it.

Warning: As Brunch is not the intended way for Chrome OS to work, thus, at some point, some Chrome OS scripts could behave terribly with Brunch and delete data unexpectedly, including Windows / non-Chrome OS partitions. I would highly recommend that you use Chrome OS on a device having less sensitive data.

Download Brunch Framework

Download Brunch Framework to install Chrome OS on Windows 10

4. Chrome OS Recovery Image

Now, it’s time to get the official Chrome OS recovery image. Click on the download button below. When the webpage opens, look for the word rammus. In the recovery column, hit on the latest recovery image to start the download. While writing this guide, the current version is 94, but it may change subsequently.

The reason we chose rammus is that it works on most modern generations of Intel processors. However, I suggest you go through the below list and download the specific image based on your processor.

Download Chrome OS Recovery ImageMirror #1

Intel Processors
  • rammus = Intel 1st to 9th generation processors.
  • volteer= Intel 10th & 11th generation CPUs.
AMD Processors
  • grunt = AMD Stoney Ridge & Bristol Ridge.
  • zork = AMD Ryzen.
Chrome OS recovery image

5. Shell Script

Finally, download the multi_install.sh shell script, which helps install Chrome OS on a Windows partition. Click on the download button below and press Ctrl + S to save the file.

Download multi_install.shMirror (Github)

multi_install.sh dual boot shell script

Now that we have acquired all the necessary files – let’s get going to the steps!

Organize Files in One Place

Step 1 – First off, gather all the downloaded files in one place. Let’s consider you have placed all the files in the Desktop folder.

Step 2 – Now, Create a folder named Chrome OS on the Windows Desktop. You can also create it in any other place having sufficient storage.

Step 3 – Using WinRAR, extract the Brunch package by selecting the ‘Extract Here’ option. As a result, you’ll get four files out of the archive. Now, move these four files to the Chrome OS folder.

  1. chromeos-install.sh
  2. efi_legacy.img
  3. efi_secure.img
  4. rootc.img
Extract Brunch tar package

Step 4 – Next, extract the Chrome OS recovery image file.

Extract Chrome OS recovery image

Step 5 – Upon extraction, you’ll get a file having a .bin extension. Rename the .bin file to rammus_recovery. Now, move the rammus_recovery.bin file to the Chrome OS folder. Note that even if you have downloaded any other Chrome OS image like volteer, grunt or zork, make sure you rename it to their respective name + _recovery.bin. For example, volteer recovery filename would become volteer_recovery.bin, and grunt recovery would become grunt_recovery.bin, and so on.

renaming Chrome OS recovery image

Step 6 – Move the shell script file multi_install.sh into the Chrome OS folder.

Step 7 – By this time, you should have six files in the Chrome OS folder. Do note the path of the Chrome OS folder as we’ll need it for performing further steps.

Chrome OS folder content required for dual booting Windows and Chrome OS from a single partition

Flash Linux Mint Cinnamon

Using the Rufus utility, we’ll flash the Linux Mint ISO image on the USB storage. Linux distro installation is necessary because ChromeOS is a Linux-based operating system, and the shell scripts that we downloaded require a Linux environment to work. The steps for installing Linux Mint on the USB storage are as follows.

Step 1 – Plug in the USB storage device such as Pendrive or microSD card and open Rufus utility.

Step 2 – In Rufus, under Device, you shall see the plugged-in USB storage. Here I am using a 32GB Pendrive.

  1. Under Boot selection, select the Linux Mint ISO that we downloaded earlier.
  2. If you are using a Hard drive, tick the List USB Hard Drives option to see your connected hard disk.
  3. Keep all other settings unchanged and now press the Start button.
 Do note that flashing the USB storage will wipe out all the data present on it. Therefore, we strongly recommend that you back up all the necessary data before pressing the Start button. 

Rufus utility settings to flash Linux Mint Cinnemon

Step 3 – When you press the Start button, a popup will appear. Select Write in ISO image mode option and press OK. If you choose DD Image boot, the USB drive won’t be accessible for you to operate in Windows. If you have a legacy BIOS and an old CPU, then DD Image mode is useful.

Rufus utility ISO image mode

Step 4 – Here, Rufus will warn you that it will erase all the data stored on the USB device that we are using to flash Linux Mint. If you have taken the backup, press OK.

Rufus data wipe warning

Create Unallocated Space for Chrome OS

Now, we need to create an Unallocated partition using the Windows Disk Management tool. You need to have at least 14 GB or more free space on the hard drive for creating an unallocated partition. I have given 100 GB of space, but you can choose your partition size.

On a side note, let me tell you something. Chrome OS requires partition size in multiples of 22 GB, for example, 22000 MB (22 GB), 44000 MB (44 GB), and so on. But here, you can assign any size you want. Later, before flashing Chrome OS using Linux Mint, we will provide an appropriate partition size.

Let’s shrink the existing drive and create unallocated space. Here are the steps.

Step 1 – Open Windows Explorer and right-click on This PC icon. Select Manage to open Computer Managemen tools.

Disk management tool path

Step 2 – Select the Disk Management option from the left. Now, click on the partition from which you want to create unallocated space. I am using an external SSD for space creation. Right-click on the selected drive and click Shrink Volume.

Windows 11 Computer Disk Management Tool used for Shrinking volume

Step 3 – As discussed at the beginning of this section, I will create a 100 GB (100000 MB) partition. Press the Shrink button to proceed.

Shrinking 100 GB disk space to create unallocated space for Chrome OS

Step 4 – Now, in the disk management, you will see that the unallocated space is separated from the selected drive and marked in black.

HDD SSD Unallocated Space

All good so far? Now we have completed all the required operations on Windows OS. Let’s boot the Linux Mint Cinnamon image from the USB flash drive.

Boot Linux Mint from USB Storage

For Linux Mint bootup and Chrome OS installation, we will have to perform a few operations in PC BIOS.

Step 1 – Shut down the Windows PC if running. Boot into the BIOS menu. For doing that, start your PC and continuously press the F2 or DEL key on the keyboard. Your PC might have a different key set for booting into the BIOS. Refer to the below table and find out the right key.

BrandsBIOS Key
AcerF2 or DEL
ASUSF2 for all PCs, F2 or DEL for motherboards
DellF2 or F12
HPESC or F10
Lenovo (Laptops)F2 or Fn + F2
Lenovo (Desktops)F1
Lenovo (Thinkpads)Enter + F1
MSIDEL for motherboards and PCs
Origin PCF2
SamsungF2
SonyF1, F2, or F3
ToshibaF2
BIOS Menu keys for various Brands

Step 2 – In the BIOS, navigate to the Boot tab and disable Fast Boot. Also, check if you have CSM (Compatibility Support Module) option. If present, set it to Disabled because we are using a UFEI mode. If you want to use Legacy mode, you can keep the CSM option enabled.

Step 3 – Now that we want to boot Linux Mint instead of Windows, we need to change the boot order. Move USB Storage at the top so that BIOS will boot our USB flash drive.

Not to be MissedHow to Install Windows 11 on External SSD or USB Storage

ASUS Zephyrus Duo BIOS Boot order

Step 4 – Navigate to the Security tab and look for Secure Boot Control or a similar option. If enabled, change it to Disabled. Without disabling the secure boot function, you can’t boot the Chrome OS even after a successful installation.

ASUS Zephyrus Duo BIOS Secure Boot options

Step 5 – Finally, press the F10 key to save the changes and exit the BIOS. Your PC shall restart, and you will see the following Linux Mint Menu. Press Enter to proceed.

Linux Mint Boot Menu

At this point, you should have entered into the Linux Mint Cinnamon OS.

Install Chrome OS

Step 1 – Once you see the Linux Mint interface, connect your PC to the Internet using ethernet cable or Wi-Fi. The Chrome OS installer requires an active internet connection to fetch necessary libraries and dependencies.

Step 2 – Now, double-click the Computer icon on the desktop and navigate to the drive where you have kept the Chrome OS folder.

Chrome OS folder on Linux Mint

Step 3 – Right-click on the blank white space and select the Open in Terminal option. A terminal window pointing to the Chrome OS folder shall open.

Open Chrome OS folder path in Terminal

Shell Commands

Step 4 – Enter the following command in the Terminal window.

sudo sh multi_install.sh
Linux command to install Chrome OS on Windows partition

Step 5 – The installer will ask you whether to download the required files and continue the installation. Press y and hit Enter key.

Addition package download confirmation in Linux Terminal

Step 6 – Following the installation, a window will appear, and it’s nothing but a Linux disk partition tool GParted.

  1. If you have multiple drives connected to your PC, then make sure that the correct hard disk is visible at the top right side.
  2. Select the entry named unallocated.
  3. Click on the plus icon located at the top left to create a partition.

Making NTFS Partition for Chrome OS

Linux GParted tool to create partition for Chrome OS

Step 7 – Enter 44000 (or any multiple of 22000) in the New size field. Enter Chrome OS in the partition name field and choose File system as ntfs. Press Add button.

Partition size and File system in GParted

Step 8 – Click the check icon located at the top to start the partitioning process. It will take hardly a few seconds to complete.

Finalizing Chrome OS in GParted tool

Step 9 – Note the partition name, as we’ll need it in the next step. My partition here is sda3. Now, close the partition creation window so that the script in the terminal proceeds further.

Noting Chrome OS partition name from Gparted utility

Step 10 – The installer script will ask for the partition name. Enter the one that you noted in the previous step.

Entering Chrome OS partition name

Partition writing process and Errors

Step 11 – Check the size and name of the entered partition. It is a confirmation. If everything looks ok, then type yes and hit the enter key. The script will start creating various volumes, and you should see the progress bar arrows as it writes.

Now, don’t panic if you get this error – grub-install: error: failed to get canonical path of ‘/cow’. Head over to the troubleshooting section located at the of this guide and get it fixed.

Chrome OS partition confirmation in Linux Terminal
Writing partitions

Step 12 – One partition creation finishes, a grub customizer window will pop up. You don’t need to perform any actions here so, close the window.

Grub Customizer interface

Step 13 – Now, the final thing in the Linux Mint is to copy the brunch code as shown in the image below. To do that, select the code using the cursor and press Ctrl + Shift + C key combination to copy it.

Copying Chrome OS boot code

Step 14 – Navigate to the Chrome OS folder. Create a notepad file by right-clicking and selecting Empty Document. Paste the code that you copied in the previous step.

Pasting the boot code in a text file
Chrome OS boot code pasted in a blank document

Step 15 – Finally, shut down Linux Mint, remove the USB, and hit Enter key.

Linux Mint shutdown USB removal warning

Dual Boot Windows with Chrome OS

You have successfully installed Chrome OS alongside Windows, but to run it, we need to add its boot entry for it to be bootable. We’ll use the Grub2win application for this job.

Step 1 – Download the Grub2Win Application.

Download Grub2Win(Sourceforge.net)

Grub2Win download page

Step 2 – Open the Grub2Win application and make sure it says Secure Boot is Not Enabled.

Grub2Win Secure boot disable confirmation

Step 3 – Now, click on the Manage Boot Menu button and perform the following steps.

  1. Select Type as Submenu.
  2. Enter Title as Chrome OS.
  3. Click on the Edit Custom Code button.
Grub2Win Main UI to change boot resolution and timeout
Chrome OS Submenu entry with Custom code in Grub2Win

Step 4 – Go to the Chrome OS folder and open the text file we saved before shutting down Linux Mint OS.

Opening Chrome OS boot code file

Step 5 – Paste the text in the “Custom Code” field as shown below. Click on Apply and close the window.

Pasting boot code in Grub2Win

Step 6 – Move the Chrome OS position upwards as it will be easy to select it at the startup. Close the Grub2win application and restart the system.

Shifting Chrome OS boot order and placing below Windows 11

Booting into the Chrome OS using Grub2Win Menu

1. When the system restarts, you’ll see the Grub2Win menu. Press down the key to select Chrome OS as a highlighted row.

Selecting Chrome OS from the Grub2Win menu

2. BIOS will execute the code that we pasted while creating a Chrome OS boot entry in the Grub2Win application, and eventually Brunch framework will fire up.

Loading Brunch Framework message before booting into the Chrome OS interface

3. Woohoooo! There you go, guys! You have successfully booted into the Chrome OS.

Chrome OS Google account sign in page

You can now set up your Google account and have fun using Chrome OS alongside your Windows 10 or Windows 11 PC. Move to the Troubleshoot section if any hardware device or WiFi is not working on the Chrome OS.

Keep in mind, before you log into the Google account, you are officially not allowed to run Chrome OS with Play Store support on non-certified machines. In some ways or the other, you might be violating Google’s terms and conditions. So, we recommend you sign in with a secondary Google account so that your primary account remains safe.

Chrome OS Screenshots

Chrome OS Build version and update page
App launcher in Chrome OS showing Play Store and Google Apps such YouTube
Chome OS notification bar to toggle WiFi, Bluetooth

Uninstall Chrome OS From Windows PC

Installing Chrome OS on Windows partition is one lengthy procedure. But when we talk about its uninstallation, it is simple. Just boot into Windows OS and open the Disk Management tool. Locate the Chrome OS partition we created at the beginning of this guide, right-click on it, and select format.

Similarly, open the Grub2Win application. Delete the Chrome OS entry we added and save the changes.

Troubleshooting (Updated November 2021)

1. Fix grub-install: error: failed to get canonical path of ‘/cow’

So, you do come across this error, eh? That’s no problem. We’ll fix it by writing some quick commands in the terminal.

Step 1 – Since there is already one instance of the terminal running, keep it as it is. Open another Terminal window and enter the following commands one by one.

dd if=/dev/zero bs=1M count=1 of=cowfile
mkfs -t vfat cowfile
su mv cowfile /cow
Fix for Linux Cowfile error
Commands to resolve cannonical path cowfile error

Step 2 – After finishing all the commands, close the second instance of the Terminal. Click on the Environment settings button, a dialogue with various options shall appear. Click apply.

image showing grub-install: error: failed to get canonical path of '/cow' error

Step 3 – Upon applying the Environment settings, the Grub Customizer windows will show up. We don’t need to do anything here so, just close it.

Grub customizer UI

2. Fix Chrome OS Wifi, Bluetooth, Touchscreen Display not working

If you face issues with specific hardware components while using the Chrome OS, you can try Chrome’s Crosh terminal to make them work.

Fix Chrome OS Bluetooth issue

Step 1 – Press Ctrl + Alt + T to open the Crosh Terminal and enter the following commands one by one.

shell
sudo edit-grub-config

Step 2 – Now, you can add support for your specific device hardware. You can find the complete set of commands from here. For instance, if you have an RT3289LE or RT3290 Bluetooth device, then you can add “options=rtbth” (with quotes) at the end of cros_debug and before loop.max.

Step 3 – Now, press Ctrl + X, hit the Y key, and then press enter to save the file. Restart your PC, and this time Bluetooth should work fine.

Fix Chrome OS WiFi issue

Step 1 – Find out the manufacturer of your WiFi card.

  1. For Broadcom WiFi cards, use the following command in the Crosh terminal.

    options=broadcom_wl
  2. For Realtek WiFi cards, use the following command in the Crosh terminal.

    options=rtl8188eu” or “options=rtl8821ce

Enjoy Chrome OS and Windows together on a Single Machine

So, that’s how you can install Windows and Chrome OS on the same hard disk and boot both OS from a single machine. The steps could be complex and lengthy for beginners but if you’ve dealt with Linux before, then it’s an easy task for you to dual boot Windows 11 and Chrome OS.

That’s all from us in this guide. I hope you enjoyed it! If you face any issues while performing the above steps, then post your comments below. We’ll try out best to help you out.

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