To create a bootable Flashdisk that contains the Windows 10 Installer can be done without using any additional tools or software. which is used only the default Windows command.
Insert DVD installer Windows 10 into DVD drive or if using ISO file make sure it is mounted as DVD Drive.
Plug in 8GB Flashdisk whose data is secure (meaning it will be formatted, make sure there are no files in it, unless the file is not needed).
1. Look using file explorer (Windows explorer), DVD is on what drive? What drive flashdisk ?, for example on my computer DVD as drive F, and Flashdisk is on drive H
2. Run Command line / Command prompt as Administrator,
3. After the Command line screen appears, type: diskpart and then press Enter.
> diskpart
it will appear Diskpart Prompt
4. Type the disk list then Enter.
DISKPART> list disk
Will appear the disk list, you can certainly know which drive is a flash, the easy way is to see the capacity.
In the example capture above my flash is Disk 1 which size is 8GB (read 7710 MB)
5. Because the flash in the example as disk 1 then the command then type: select disk 1, press enter. (match the disk on your computer).
DISKPART> select disk 1
there will be disc description 1 is now selected disk.
6. Then type: clean, press enter.
DISKPART> clean
will appear DiskPart description succeeded in cleaning the disk.
7. Next command, type: create partition primary, press enter.
DISKPART> create partition primary
Will appear description Diskpart succeeded in creating the specified partition.
8. Next step type: select partition 1, press enter
DISKPART> select partition 1
Will appear description Partition 1 is now the selected partition
9. Then type: active, press enter.
DISKPART> active
There will be a description of Diskpart marked the current partition as active.
10. The next command is to format the flash, type: format FS = NTFS and then press Enter.
DISKPART> format FS = NTFS
The process of this format will take a while because it is a full format instead of a quick format.
The format process was successfully marked with a description: 100 percent completed and
Diskpart successfully formated the volume.
11. After the formatting process is complete the next command is type: assign, press Enter.
DISKPART> assign
there will be a description of Diskpart successfully assigned the drive letter or mount point.
12. Type exit then press Enter to exit from diskpart.
DISKPART> exit
There will be a Leaving Diskpart ...
The next step is to make Flashdisk to Bootable, meaning that flash can be used to boot. The tool is in the Windows Installer 10 in the Boot folder.
13. Go back to step 1 to make sure which DVD drive of Windows Installer 10 is, and where is the Flashdisk. in example: DVD Installer is in drive F, Flashdisk is drive H.
14. Type F: then Enter. (replace F with your laptop / laptop DVD drive).
F:
15. Type cd \ boot then Enter
cd \ boot
16. Type the command: bootsect / nt60 H: then Enter (H here is a flash drive, please adjust it with your flash drive).
bootsect / nt60 H:
After successfully bootable there will be a Successfully updated updated NTFS filesystem bootcode. Bootcode was successfully updated on all targeted volumes.
The next step is to copy all the files that are on DVD Installer Windows 10, copied to flash still by using Command prompt with xcopy command.
17. Notice again the DVD and Flash drive do not get mixed up,
The command is:
type xcopy f: \ *. * h: \ / e / f / h then hit enter,
purple color f = DVD, red h = flash, adjust with drive letter in your computer. (f and h on / e / f / h instead of drive, but command).
F: \ boot> xcopy f: \ *. * H: \ / e / f / h
The copy process will run a bit longer because of its large size of about 4GB.
After the copy is complete, the flash is ready to be used for booting and installing Windows 10.
Do not forget the computer or laptop that will be installed Windows 10 using this installer flash, boot order in BIOSnya must be set so that USB stick is in first place.
This applies also to Windows 8.
