Use “Rufus” to create Bootable Window 10 USB for Legacy BIOS and UEFI.

Step 1

If you have not already, you will need to download a Windows 10 ISO file.

https://www.microsoft.com/en-us/software-download/windows10

Step 2

Download the latest version of Rufus, and save its .exe file to your desktop.

https://rufus.ie/

Step 3

Connect the USB flash drive that you want to use for bootable.

Step 4

Run the Rufus .exe file, and click/tap on Yes if prompted by UAC.

Step 5

To Create Bootable USB Flash Drive for Installing Windows 10 with Legacy BIOS or UEFI

UEFI Requirements:
*64-bit Windows 10 ISO file. 32-bit is not supported.
*At least a 8GB USB flash drive depending on how large the ISO file is.
*To boot from an external UEFI USB flash drive, be sure to temporarily disable
Secure Boot and Fast Boot (if applicable) in your UEFI firmware settings until
the Windows installation is finished.
  • Under Device, select the USB flash drive you want to format and use.
  • Under Boot selection, click/tap on the SELECT button, and navigate to and select your 64-bit Download Windows 10 ISO file.
  • Under Image option (if available), select Standard Windows installation.
  • Under Partition scheme, select MBR.
  • Press the Alt + E keys.
  • Under the Target system, select BIOS or UEFI.
  • Under Volume label, you can enter any name you like for the USB flash drive, or leave the default name.
  • Under File system, select FAT32 (if able). If the file is larger than 4GB, you will only be able to select NTFS.
  • Under Cluster size, select the (Default) (ex: 16 kilobytes) it has listed.
Rufus-Setup

Step 6

To Create Bootable UEFI USB Flash Drive for Installing Windows 10 only with UEFI

UEFI Requirements:
*64-bit Windows 10 ISO file. 32-bit is not supported.
*At least an 8GB USB flash drive depending on how large the ISO file is.
*To boot from an external UEFI USB flash drive, be sure to temporarily
disable Secure Boot and Fast Boot (if applicable) in your UEFI firmware
settings until the Windows installation is finished.
  • Under Device, select the USB flash drive you want to format and use.
  • Under Boot selection, click/tap on the SELECT button, and navigate to and select your 64-bit Download Windows 10 ISO file.
  • Under Image option (if available), select Standard Windows installation.
  • Under the Partition scheme, select GPT.
  • Under the Target system, select UEFI (non-CSM).
  • Under Volume label, you can enter any name you like for the USB flash drive, or leave the default name.
  • Under File system, select FAT32 (if able). If the file is larger than 4GB, you will only be able to select NTFS.
  • Under Cluster size, select the (Default) (ex: 4096 bytes) it has listed.
Rufus wiht uefi only

Step 7

To Create Bootable USB Flash Drive for Installing Windows 10 only with Legacy BIOS (without UEFI).

A) Set Rufus using the settings below, click/tap on Start, and go to step 9 below. (see screenshot below).

  • Under Device, select the USB flash drive you want to format and use.
  • Under Boot selection, click/tap on the SELECT button, and navigate to and select your 32-bit or 64-bit Download Windows 10 ISO file.
  • Under the Image option (if available), select Standard Windows installation.
  • Under the Partition scheme, select MBR.
  • Under the Target scheme, select BIOS(or UEFI-CSM).
  • Under the Target system, select UEFI (non-CSM).
  • Under the Volume label, You can enter any name you like for the USB flash drive, or leave the default name.
  • Under the File system, select  NTFS.
  • Under Cluster size, select the (Default) (ex: 4096 bytes) it has listed.
Rufus without UEFI

Step 8

Click/tap on OK to confirm. (see screenshot below)

Step 9

Rufus will now start creating the bootable USB flash drive. (see screenshot below)

Step 10

When Rufus is “READY” (finished), you can close Rufus. (see screenshot below)


It could take a little while to finish.
Rufus-Finished