How To Create AVG Bootable USB Drive
AVG Rescue CD is great way of removing malware from a Windows PC for when the operating system is unresponsive. You can download the ISO for AVG Rescue CD from AVG at no cost. Here’s what you will need prior to creating the bootable USB drive:
- Download the appropriate .ISO file from the AVG site
- Download UNetbootin, Windows application
Format The USB Drive
Make sure the USB drive formatted to the FAT file system. The Windows formatting application works just fine. 
Creating The Bootable USB
Start UNetbootin by clicking on the executable. 
Click on Diskimage. 
And browse to the location where the AVG Rescue CD .ISO file was downloaded to. 
Make sure select the correct .ISO image. 
With the .ISO selected you can now select the USB drive where the ISO image will be stored, my USB drive was recognized as F:, and click on OK to start the process. 
Process will take a few minutes. 
Click on Exit the USB drive was successfully created. 
Make sure the BIOS is set to boot from Removable Devices also know as USB drives not doing so will result in not being able to boot from the USB drive. 