Step 2. Check if your drive has bad sectors. You can press Win + R to summon the Run window, then type cmd.exe and click OK. To recover data using CMD, just see below: Solution 1: Recover data from flash drive using CMD
"USB Device Not Recognized or Malfunctioned".
The virus has infected the flash drive and corrupted the files in it. USB drive shows 0 bytes or "folder is empty". "Please Insert Disk into Removable Disk". USB drive is blank or has an unsupported file system. USB drive holds bad sectors and displays "disk needs to be formatted". Then, I will list the common scenario in the following. And you are not able to open USB stick and the data on it. That's to say, your flash drive may be corrupted or damaged. Sometimes, your computer will ask you to format the USB flash drive. Why does my flash drive says it need to be formatted?