Hi ! your are victim of virus that changes the attributes of the file system. I guess virus transferred from your mobile infected your pc file system.
Tension not. you can do it.
I hope you know command prompt dos window.
C:\\Users\yourwindowuser\
if your drive where you copies the files is let D drive. type D: and press enter. This will lead you to D drive as below.
C:\\users\yourwindowuser\D:
D:\\
type an command attrib -a -r -h -s /s /d next to D:\\ and press enter command will carry to execute then stops after print again D:\\ as below
D:\\ attrib -a -r -s -h /s /d
D:\\
your files will shown there. There may be a foulder without name please open it that contain your files save them to another folder.
I hope that works.
Ahsan Ranjha