method One: Change the disk path
1. Press the shortcut key Win+r, open the running window, enter cmd, press ENTER, open the Command window.
2. Command window to enter the command: Format F:/fs:fat32 attention to the middle of the space, press the ENTER key to execute the command. In the command, F: refers to the letter of your USB drive.
For example, the letter you see here is H:
3. Open the Control Panel in the Start menu, in Control Panel, change the view to a small icon, and then locate the admin tool and open it.
4. In the management tool, locate the Computer Management and double-click to open it.
5. In Computer Management, you will see all the disks, locate the disk where the USB disk is located, right-click it, and choose Change Drive and path.
6. Open a dialog box, select the letter A in the Drop-down list on the right and click the OK button.
7. Back to Disk Manager, and then right click a disk, in the Open right-click menu, choose Format, so you can format the USB drive.
Method Two: Usboot tool repair
1. Download Usboot.
2. Open the software, mouse click on the disk letter, and then click on the bottom of a connection.
3. First USB disk Backup to prevent data loss, this is the format before the necessary steps: In the Open right-click menu, select "To be divided into folders."
4. After a good backup, back to the software, and then click on the following connection, in the Open menu, select HDD mode.
5. Click on the top right corner of the Start button, make a U disk, follow the prompts to operate, wait a few minutes.
6. After the startup disk is finished, go back to my Computer, right-click the disk, and choose format so that we can accomplish our goal.