Disclaimer: Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. Modify the registry at your own risk, Every effort has been made to ensure that registry edit instructions are correct and safe. MyPCHell cannot be held responsible for any damage done to your system by using this guide.
Note: Click on any image for a larger view of that particular image.
Before beginning this guide, please do this
Click 
,
then 
Type regedit then click 
Then Navigate to the following key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdrom
On the right side, locate and double click on Autorun and give it a value of 0
Then Reboot your computer