Can't format my usb flash from bootable to normal

Question

A few weeks ago I decided to format my PC as it wasn't working very well.

Since I didn't have any Windows 7 on disk I decided to use my USB flash drive to do that.

So I made it bootable and formated my PC. Then I tried to reformat the flash back to normal, but I didn't succeed.

Above you can see my USB flash drive. And in it I have this:

How can I fix this?

Answer 1

Use the clean command in Diskpart.

1. Open a Command Prompt with admin privileges.
2. Type diskpart and press enter
3. Type list disk and press enter

4. Find your USB drives disk number in the first column. You'll use the select disk command to select your USB drive. If it were disk 3 for example you would type select disk 3 and press enter. Make sure you choose the proper number for your USB drive as the clean command will completely wipe the selected disk.

5. Type clean and press enter.

Now format the USB drive.