Disable Autorun

When you play a CD or connect a USB with the pc port then the file open automatically. Now you change this function with this tutorial.
Go to Start=> Run
Here you type " gpedit.msc "
and press Enter
Now go to Administrative Template=> System
Now double click on
" Turn Off Autoplay "
Now a window will be open and select " Disable "
" Apply " and  "Ok "