- Many operating systems have different advantages and disadvantages, which is why many users opt for a dual-boot system.
- That said, the article below will teach you exactly how to dual boot Windows 10.
- Visit our specialized Windows 10 section to learn more about using this great operating system.
- Do you enjoy learning new and interesting things? Check out the tutorials in our how-to section!
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You’ve probably heard that it’s not recommended to install Windows 10 as your primary operating system, but if you really want to use it, there are a number of methods that allow you to use it alongside your current system. And one of these methods is dual boot.
Dual booting is not a complicated task. Here’s what you need to do to complete it successfully:
- Shrink your system partition to make enough space
- Download the Windows 10 ISO file
- Install Windows 10 along with your current system
- Choose which operating system you want to start
How do I dual boot Windows 10 and another OS?
This article will guide you through the dual boot process. Also see these articles for more information about the specific operating systems you choose to work with on your computer:
- Dual Boot Windows 10 and Ubuntu – follow the instructions below. Since Windows 10 has settings that are not optimal for dual-boot setups, some issues may arise. Here is a specific guide to fix Ubuntu Windows 10 dual boot.
- dual boot Windows 10 and Linux –many of them had problems with it. If you can’t install Linux on a Windows 10 PC in dual-boot mode, check out this tutorial.
- dual boot Windows 7 and Windows 10 – You can easily start Windows 7 or any other version of Windows and build Windows 10 Preview by following this guide.
- dual boot Windows 10 and Windows server – Our dedicated article shows you a great example of how to install Windows Server 2012 R2 as a second operating system on a machine. The same steps also apply to Windows Server 2016 or earlier 2008 R2, which was based on the same kernel as Windows 7.
- dual boot Windows 10 and Endless OS –Find the guide in this article.
Shrink your System Partition to make enough space
First, you need to free up space for Windows 10 on your hard drive. If you have two different hard drives in your computer and one of them is blank, you can skip this section. But you probably want to install Windows 10 along with Windows 7 or 8 on the same hard drive.
Before installing any other operating system on your computer, you need to free up space for it. If you have two different disk controllers on your computer and one of them is empty, you don’t need to do anything. But you probably want to install Windows 10 on the same partition as your current system.
To free up space for your new operating system, use the Disk Management utility, a built-in feature in Windows 7 or 8.
Follow these steps to run the Disk Management utility:
- Press the Windows key and R, then type diskmgmt.msc in the Run dialog box
- press enter to start it
- Locate your system partition, which is probably C:
- Right click on it and choose Shrink Volume.
This feature frees up some needed space and you are ready to install the new OS on the same partition as your current OS. According to the Windows 10 Tech Preview system requirements, you need at least 20 GB of free space, just like Windows 8 or Windows 8.1, but you’ll probably want more free space.
After the reduction is complete, you can download Windows 10 from the Microsoft website and continue with the process.
This can also be done through third-party partition managers that can get the job done faster and in a much more secure way, and it doesn’t take that many steps either.
A good example is AOMEI Partition Assistant Professional, a tool that allows anyone with basic English skills to do whatever they want on their partitions, even shrink them.
Simply launch the program, select the appropriate partition and then select from the toolbar what you want to do with it.
Also, don’t forget to backup your data before installing a new operating system. While you shouldn’t delete any of your existing files, make a backup just in case.
Download the Windows 10 ISO File
After preparing your hard drive for the installation of the new operating system, you need to download it from the Microsoft site. Download a Windows 10 ISO file and burn it to DVD or create a bootable USB flash drive.
After that, leave your DVD or USB flash on your computer and restart it. It should start the installation automatically, but if not, change the boot priority in the BIOS.
Install Windows 10 alongside your current system
Now install Windows 10 Technical Preview normally.
Select your language and keyboard layout and proceed to Install Now.
After you accept the license agreement, choose Custom: Install Windows Only (Advanced) because the new copy of Windows will be installed on the desired partition.
Choosing the Upgrade option will upgrade your current operating system to Windows 10.
Where do you want to install Windows? the window will appear. You will notice an option for Unallocated space, which is the space you reduced before. Choose Unallocated space and New to create a new partition in the empty space.
A Size box will appear asking you how big you want your new partition to be. You need to use all the free space (which is also a default option) and click Apply to create a new partition.
Then follow the further instructions on the screen and complete the installation.
Choose which Operating System you want to boot
From now on you can choose which system you want to use on your computer. To switch between Windows 7/8/8.1 and Windows 10, restart your computer and choose again.
Go to Change a default operating system or Choose other options to choose which operating system to start by default and how long it takes for the computer to automatically start the default operating system.
Both versions of the system use the NTFS file system, so you can easily access your files from both operating systems.
Let us know if this guide was helpful by leaving us your feedback in the comment section below.