Click one of the Download links on this page to download a special file—it's called an ISO file—that you can use to install the preview.
When the download is complete, transfer the ISO file to installation media such as a USB flash drive or DVD.
Double-tap or double-click setup.exe from the installation media, and then follow the steps.
Important
Remember, trying out an early build like this can be risky. That's why we recommend that you don't install the preview on your primary home or business PC. Unexpected PC crashes could damage or even delete your files, so you should back up everything.
If you want to stop using Windows 10 Technical Preview and return to your previous version of Windows, you'll need to reinstall your previous version from the recovery or installation media that came with your PC—typically a DVD. If you don't have recovery media, you might be able to create a USB recovery drive.
After you install Windows 10 Technical Preview, you won’t be able to use the recovery partition on your PC to go back to your previous version of Windows.
Be sure to check out system requirements and other important informationbefore you install.
IT professionals
Windows 10 Enterprise Technical Previewenables businesses to provide a familiar experience across multiple devices while enhancing security and manageability.
Become a Windows Insider
Register for the Windows Insider Program and help shape the future of Windows—you'll get a steady stream of builds with all the latest features and the opportunity to tell us what you think about them.