When upgrading to Windows 10 with MCT, should I create DVD or USB, any pros or cons of each media type? There has been cases of USB attack vector. Is there a way to write protect the USB after creating the setup media? The DVD is automatically finalized and write protected after burning with ImgBurn. I contacted the UFD manufacturer and they said the USB drive are not infallible and more easily corruptible than DVD. They have warnings about static electricity, radiation scanning through USPS, improper removal of USB drive. All of those is listed on Caring for your Flash Memory | Kingston Technology
. Power surge can damage a USB drive if it happens while installing Windows?