Once it's finished installing, go to Settings > Windows Update > Windows Insider Program to make sure your Windows Insider settings are correct.Ĭlean installation with a Windows Insider Preview ISOīack up all your files and applications. Select the setup.exe file to launch the install process.ĭuring setup, select the Keep Windows settings, personal files, and apps option. Select the ISO file to open it, which lets Windows mount the image so you can access it. Open File Explorer and go to where you saved the ISO. ISOs are available for both Windows 10 Insider Preview Builds and for Windows 11 Insider Preview Builds.ĭownload Windows Insider ISOs In-place upgrade with a Windows Insider Preview ISOĭownload your chosen ISO from the Windows Insider ISO page by saving it to a location on your device or creating a bootable USB. If your device is hard to use because of an issue, or if you want to switch out of the Dev Channel or stop receiving preview builds, you might need to use an ISO for a clean installation or in-place upgrade.