I'm trying to create a bootable USB to install Windows 10. Using these steps:
Format USB using
select disk 1 clean create part primary select part 1 format fs=ntfs quick active
I then copy the Windows 10 setup files to USB, files/folders:
(boot, efi, sources, support) etc. The final step is to update the boot manager:
cd E: cd boot bootsect.exe /NT60 E:
Updated NTFS filesystem bootcode. The update may be unreliable since the volume could not be locked during the update: Access is denied. Bootcode was successfully updated on all targeted volumes.
I insert the USB into a Dell Laptop
(Latitude E5570), and the USB is not shown as an option at boot selection.
What is wrong? Is there an issue with the volume not locking when updating the boot manager, or have I missed something else?