To insert a capital Roman numeral in Word 2013, users can utilize the Unicode code points for Roman numerals, which are compatible with various fonts. While some suggest using capital letters like "I," "V," and "X," others recommend exploring free Roman numeral fonts available online. LaTeX is mentioned as an alternative for formatting, though it requires specific software and is not included with Word 2013. Additionally, there are concerns about thumb drives potentially becoming infected with viruses if connected to a compromised computer, as some malware can target external storage to spread. To safely recover data from an infected thumb drive, it's advised to disable autoplay and consider using a non-Windows operating system, such as a bootable Linux image.