- Open command prompt. go to start > run > type cmd.
- Insert your USB flash drive. Assuming it is drive I:
- In the command prompt window type the following code and hit enter
attrib -h -r -s /s /d I:\*.*
here replace I: with your drives name.
- That's it. Now you can see the magic that all your invisible files are back now.
Keep Learning. Keep Rocking :P