How do I put Windows 10 on a flash drive?
Just insert a USB flash drive with at least 4GB of storage to your computer, and then use these steps: Open the official Download Windows 10 page.
Under “Create Windows 10 installation media,” click the Download tool now button.
Double-click the MediaCreationToolxxxx.exe file to launch the utility.
Can I install Windows 10 on a USB drive?
Running Windows 10 From a USB Drive. First, sign into your current Windows 10 computer to create a Windows 10 ISO file that will be used to install Windows 10 onto the USB drive. To do this, browse to the Download Windows 10 website. Then double-click the downloaded MediaCreationTool.exe file to install the tool.