Insert your USB drive and follow the prompts to "Create now". Google Help 2. Offline/ISO-style Method (Using .bin Image)
Ensure the partition scheme is set correctly (usually GPT for modern UEFI systems) and click . Method 2: Using BalenaEtcher (Linux/Mac/Windows) Download BalenaEtcher . Click Flash from file and select your ChromeOS Flex image. Select your USB drive and hit Flash! . Installation Steps
Use a decompression tool to extract the .bin file and flash it with a utility like Rufus or Etcher.
1: Create the USB installer - ChromeOS Flex Help - Google Help