Workaround steps:
1. Insert the U disk into the USB interface of the computer, turn on "My Computer-u disk letter"-Right Select "Properties"-"Tools" tab, as shown in the following figure:
2. Then click "Start Check"-tick "automatically fix file system error (A)", "scan and try to restore bad sector (N)"-and then click "Start (S)". As shown in the following illustration:
When you encounter this situation again, then you can follow the small set of methods to solve the problem, the use of such a simple way you can not worry about the need to backup the U disk file can be assured that the U disk format trouble.
1, empty folder can not delete the U disk inserted in the computer USB interface, such as computer recognition and display U disk icon, right click on the U-disk icon, in the pop-up list of options click the "Properties" button, as shown in the following figure:
2, in the pop-up U-Disk Properties window, select the "Tools" tab, and click the "Start Check" button, as shown in the following image:
3, then the disk check option to automatically repair file system errors and scans and try to restore bad sector check, and then click the "Start" button, as shown in the following figure:
4, then wait patiently and perform a disk check operation, as shown in the following illustration:
5, after the completion of the disk check, will pop up the corresponding prompt window, click the "Close" button to end the task, as shown in the following figure: