360 will treat all the bat files on your USB flash drive as if they were files, and the result will be a .del extension added to the filename.

If this is the case, delete the .del and it will work.

DEL file extension information

1. A Creator Simulator Compiled Module file.

2. A kind of data file.

3. A Deleted Data List file.

4. A PCTracker Uncrossed Tracking file.