Turn Off Autoplay (Stop Malware or Virus From Being Executed Via USB or CD ROMs startup)

Autoplay works on CD-ROMs, flash drive or external hard drives
If these devices contain Malware/Virus, they might be executed directly on the C drive and damage the Windows System files

Solution:
1) Go the Start -> Run
2) Type gpedit.msc and press Enter
3) Browse to the following folder and right click on "Turn Off Autoplay"
4) Check on ENABLE and choose the drive/s you want to disable Autoplay on -
5) Then Click "Apply" then "OK"
Now the external drive/CD ROM won't execute any file when you connect them onto your PC