flash help: how do i rewrite a usb flash - Help.com

do you mean how do you format a USB flash drive?

if you want to destroy all data on the drive you can format it.
In Windows you simply right-click on the drive and select “format”.
this will wipe the drive completely clean. Ready for new data.

Be careful though any information on that drive that you want you cannot get back
after “format”

oh I’m not sure how to remove the “write protect”
my son would know but he is not here.

some drives have a small switch on the side. This allows you to physically
turn the write protect on and off. Try looking for it.

use the following at your own risk !!!!!!
Create a folder on your desktop.called the whole of the data
from your USB drive into that folder. Make sure it copies it all first.
Then you can try :

Hi, I’m work in São Paulo \ Brazil and try to this for problem … is very easy ..OK
Click > Start > RUN > type “CMD” Then
Type “CHKDSK” and type o your Pendrive and “/F”. Ex. chkdsk Q: /F > Enter

Ok, You see many msg error. OK!
Now, you remove your pendrive and plug again.
Try to format.
It’s work very well in Profilit USB Driver 256 MB.

I have not tried this:
I don’t know if it works. Use as a last resort.