After that you can slide back the notch to lock position safely.īut many of the pen drives don’t provide hardware lock/notch for write protection. Move/slide the notch to unlock position ( means releasing write protection) before you perform any file operations in your drive such as copy/paste/format etc. It’s even marked with lock/unlock symbol. First of all look for it in sides of your drive. In most of the USB based flash/pen drives, write protection is provided via the small notch.