: Plug in your USB flash drive and select it from the list of destinations.
Keep that USB drive in a labeled drawer. When your old Windows 7 machine bluescreens with INACCESSIBLE_BOOT_DEVICE , you will thank yourself for spending the 10 minutes to build this tool.
In this guide, we will walk you through the steps to create an Acronis True Image 2015 bootable USB stick using the ISO method.
: Click Start . If prompted, select Write in DD Image mode and click OK. How to Boot from the USB Making a bootable USB drive - Acronis