To be clear both these approaches will only show you how to put windows 10 on a usb flash drive.
Windows 10 thumb drive size.
Insert the usb to your pc and restart it.
See the above instructions to create the usb.
To boot from cd you need to re arrange the boot device priority sequence to your bios.
Microsoft has a dedicated tool that you can use to download the windows 10 system image also referred to as iso and create your bootable usb drive.
That option works fine when you download the windows 10 installer files using the official windows 10 download page because those files are packaged specifically for use on usb flash drives.
Turn on the pc and press the key that opens the boot device selection menu for the computer such as the esc f10 f12 keys.
Using the tool to create installation media usb flash drive dvd or iso file to install windows 10 on a different pc click to show more or less information follow these steps to create installation media usb flash drive or dvd you can use to install a new copy of windows 10 perform a clean installation or reinstall windows 10.
Remove the usb flash drive.
When the process is done click finish.
Create a bootable usb drive of windows 10.
Take a look at the size column and figure out which disk number your usb drive is.
Select the option that boots the pc from the usb flash drive.
On windows 10 the ability to format a usb flash drive can come in handy in a number of scenarios.
Use microsoft s media creation tool.
Choose a location on your hard drive to store the windows iso file and click save.
Confirm the backup settings and click start backup to image windows 10 to usb drive.
Make sure you have plugged the usb flash drive into the computer.
Select the usb flash drive to save the windows 10 backup.
The program will detect the device automatically.
Connect the usb flash drive to a new pc.
Create a windows 10 usb flash drive and guide to install windows 10 using a usb device.