The files inside the U disk have all been changed for the exe format, which includes the folders happen to be replaced. This really is poisoned. This is a prevalent U disk virus. From your description, it needs to be infected using the U disk inside the public computer space on the school. of.
Specific solutions.
In Explorer, select the folder and search alternatives:


Inside the folder choices, choose View, and set in accordance with the red box inside the figure:


Then open the U disk, you can come across that all your typical files and folders have been changed to hidden files, after which all the .EXE files are disguised as your files and folders.
Now you are able to delete these EXEs, back up the helpful data of the U disk, after which format the U disk.
Finally, check http://www.google.com with anti-virus application.


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