finder show hidden files

virus ki waja say ap ki file hid ho jati hai us ko dobara show karwanay k liye in steps  ko follow karo

step 1  click the start button
step 2   click the run option
step  3 type in run   cmd   then click ok
step  4 type in dos  c://attrib -h-s/d/sd:/*.*

or d ki jaga par ap drive ka letter likh dana jis k file wagara ko unhide karna ho