Video tutorial available: All the steps you need to follow are also presented in a video. In order to see the video click here.
In order to create the Bitdefender RescueCD you will need to .iso image and also a CD/DVD burning application. In our example we will be using a freeware software called InfraRecorder to exemplify the procedure:

For instructions on how to scan using the Bitdefender Rescue CD please use this KB article.
For instructions on how to copy files using the Bitdefender Rescue CD kindly consult this KB article.
To use the bootable USB simply plug in the USB to the infected computer and and then start the computer. During the boot process, choose USB or Removable Drive as the first boot option from system BIOS or use the F8, F12 or ESC key during the boot process for the BIOS screen to choose the boot options. (Using the F8, F12 or ESC key will depend on the make and model of the computer. Look at the screen when the startup first begins to determine what option you need to choose. Tapping the key during startup will activate the boot options.)
If the above method does not work to boot the USB then see here. Common USB BIOS boot options . <<- Caution!! Changing settings in the computer BIOS should only be done by skilled users. If you are unsure of what to do then ask in one of the Free PC Support Forums listed at the bottom of this guide.
You should not have to change any of the options during the boot process. Just let everything load and the scan will begin. On the very first menu, do not select *Console Mode* unless you are an advanced Linux user.
When the scan is complete, let Bitdefender remove or quarantine anything found and then exit the Bitdefender scanner.
Right click an empty space on the desktop and choose Exit from the menu. You will see Linux go through an unloading process. At the end it will say to remove the CD from the CD/DVD drive but using this method you will remove the USB Drive. Next press the Enter/Return key on your keyboard to Exit and turn off the computer.
Restart the computer normally.
Note: If the booting from USB option isn't available on your computer, you'll need to boot from the CD/DVD drive using a CD burned from the Bitdefender Rescue Disk .iso file.