Hello, We are sorry for the inconvenience caused to you. We regret to learn about your user experience and since you are facing issues while using SanDisk 1TB Extreme Portable SSD, we request you to contact us directly so that we can investigate further to know more about the issue in order to isolate the possibilities and provide you with an appropriate resolution. We will also check if your drive is eligible for a possible replacement. You may also contact SanDisk Professional Support at 1-866-270-5532 or submit a support request at https://support-en.wd.com/app/askweb and we will assist you towards the best possible resolution.