How to Install Windows 10 Preview in VirtualBox

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Windows 10 in a Virtual Box

Though you can install Microsoft's Windows 10 Technical Preview over your current Windows, or dual boot it, the easiest and safest way to try out any new platform is to put it in a virtual machine. By using free tools such as Oracle's VM Virtual box, you can create a computer that runs in a window on your desktop, allowing you to experiment without leaving your familiar environment behind. Here's how to install Windows 10 in a virtual machine. 

1. Register as a Windows Insider at by following the prompts to click the Get Started button, press the Join Now button, sign in with your Microsoft account and agree to the program's terms.

Click Get Started

2. Click install Technical Preview.

click install technical preview

3. Click Get the ISO files at the bottom of the page if you don't already see a list of links to different versions of the OS.


Get the ISO files

MORE: How to Upgrade to Windows 8.1 From Windows 8

4. Download the correct version for your language and computer. For most PCs, you would want English 64-bit. Some older systems and Atom-powered tablets might require the 32-bit version. If you're doing an upgrade install over Windows 8, use the same version you have.


Click Download

5. Install Oracle VM VirtualBox if you don't have it already.

6. Click New in VirtualBox.

Hit new

7. Name the operating system (ex: "Windows 10"), select Windows as the type and Windows 8.1  (64-bit) as the version and Click Next.

name OS 

 8. Set the memory size to at least 2048 MB and click Next. If you have 8GB or more, consider making it larger.

set memory size

9. Click Create, leaving the selection on "Create a virtual hard drive."

Click Create

10. Click Next, leaving the type set to VDI.

click Next

MORE: How to Use Split Screen Mode in Windows 8.1

11. Click Next, leaving the selection set to Dynamically Allocated.

Click Next

12. Select the hard drive size for the virtual hard drive and click Create. Make it at least 20GB.


13. Click Settings with the Windows 10 installation selected. 

Select settings

14. Select storage from the left window pane.

Select storage

15. Select the optical drive in the Storage Tree and click the disc icon under Attributes to select a virtual disc.

Select optical drive and disc

16. Select the Windows Technical Preview ISO file and click Open.

Select ISO file and click Open 

 17. Click Ok in the Virtual Box window.

Click Ok

 18. Click Start in Virtual Box. 

Click Start button

A new virtual machine will appear in a window and boot into the Windows 10 installer.

19. Click Next on the screen which shows your language region choices.

Click Next

20. Click Install now.Click install now

21. Accept the license terms and click Next.

Accept the license terms and click next

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22. Select Custom install.Select custom install

23. Click Next, leaving Drive 0 selected.

Click next to select drive

 Windows will then take a few minutes to copy files.

windows install

You do not need to do anything while this happens, but you'll notice that the software will restart the virtual machine and continue copying files with the phrase Getting Ready on the screen for several minutes. It will then reboot a second time before you are prompted to hit any more buttons.

24.  Click Use express settings.Click use express settings

25. Sign in to your Microsoft account or create a new one.

Enter account

26. Verify your account by entering either your email address or phone number. You will be sent a code to enter.

Enter email

Enter code

27. Select "Set this up as a new PC" if prompted to import settings from another computer associated with your account. Click Next.

Set this up as a new PC

28. Click Next to allow the virtual PC to store files in OneDrive.

Click Next

Windows will take a few more minutes to install apps for you and prepare your account.

Windows 10 installing your apps

After that, you'll be taken to the Windows 10 desktop, which is ready for you to begin using it. 

Windows 10 desktop

Any time you want to restart your virtual machine, just click Start in the VirtualBox window.

Click Start

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Author Bio
Avram Piltch
Avram Piltch, LAPTOP Online Editorial Director
The official Geeks Geek, as his weekly column is titled, Avram Piltch has guided the editorial and production of since 2007. With his technical knowledge and passion for testing, Avram programmed several of LAPTOP's real-world benchmarks, including the LAPTOP Battery Test. He holds a master’s degree in English from NYU.
Avram Piltch, LAPTOP Online Editorial Director on