Windows 10: Completely format bootable USB flash drive

Hi
How to completely format a bootable USB flash drive because I found there's a partition on the flash drive named "UEFI_NTFS" (EFI > Boot & Rufus folders with .efi files inside) that cannot be formatted.
My other bootable USB with MBR partition can be fully formatted.
I still keep the Win10 iso file & Rufus if needed.

Thanks

:)

 

USB Flash drive made bootable

Hi Nelson,

Check if there is any slide switch on the side that provides write protection. It show's a closed and open lock on each side. We suggest to follow these steps below:

• Insert the USB flash drive into the USB port.
• Click Start, type devmgmt.msc in the Search textbox and press Enter.
• Find Disk Drives and expand it.
• Find the USB flash drive you want to format, and double-click it. It opens the
  Properties dialog box.
• Click Policies tab.
• By default, the Optimize for quick removal option selected, switch it to Optimize for performance and then press
  OK.
• Now open Computer. Right click on the USB Flash Drive and select Format. The Format dialog box now appears.
• Select NTFS in the File System field.
• Press Start and wait while the process will be completed.

You can also connect the USB drive on a different computer and try formatting.

Let us know how it goes.

 

install.wim is 7GB, how to make a bootable USB flash drive

This is a method to make a ntfs flash drive.

The trial and error step will be booting using Legacy BIOS...

Code:

This is the link:
Guide: How to Format USB Flash Drive Using Cmd - EaseUS

The link did not use active so that is why it is a trial and error step.

 

USB Flash Drive saying not formatted..?

Hi,

I have a Memorex Poker Chip USB Flash Drive 1GB, and It shows up fine on one PC as "Poker Chip" in explore, and I can transfer files... but on my other PC (the one I'm on now..specs in profile) it's listed only as H: Removable Disk, and when I click on it, it says: "The Device is not formatted, would you like to format it now? (Y/N). Why would it be recognized on one PC, but the not the other? How come the other PC didn't need it formatted? When I click yes to format it, it says: "Windows was unable to complete the format"

I went to the BIOS and USB 2.0 is enabled. And Device Manager does list it as a Memorex Poker Chip..