Create Bootable Windows 10 USB

Using the Rufus app ...

• Partition Type:
  MBR (Master Boot Record) scheme for BIOS or UEFI (2TB partition limit).
  GPT (GUID Partition Table) scheme for UEFI only.

• File System:
  NTFS for BIOS machine (faster file transfers).
  FAT32 for UEFI or BIOS machines.

Manually ...

1. Partition and format the USB drive (disk 1).

• DiskPart.exe

  • if UEFI machine

    SELECT DISK 1
    CLEAN
    CONVERT GPT
    CREATE PARTITION PRIMARY
    ACTIVE
    FORMAT FS=FAT32 QUICK 
    ASSIGN
    EXIT
    

  • if not UEFI machine

    SELECT DISK 1
    CLEAN
    CONVERT MBR
    CREATE PARTITION PRIMARY
    ACTIVE
    FORMAT FS=NTFS QUICK 
    ASSIGN
    EXIT
    

2. Copy Boot Config Data (BCD).

• @ Windows OS at drive C:, and USB at drive K: …

  • Using BCDBoot.exe

    bcdboot.exe C:\Windows /S K: /F ALL
    

• @ Windows Install ISO mounted at drive J:, and USB at drive K: …
  

  • Using BCDboot.exe

    bcdboot.exe J:\BOOT /S K: /F ALL
    

  • Using BOOTSECT.EXE (legacy; Windows XP)

    PUSHD J:\BOOT
    bootsect.exe /NT60 K:
    

Can specify machine firmware type; /F UEFI|BIOS|ALL.

3. Copy all files from mounted ISO (J:) to USB (K:).

• robocopy.exe J: K: /s