In past Live Online chats and blog posts, I've mentioned any easy way to temporarily convert a Windows PC into a Linux-based computer in order to ensure that your online banking credentials positively can't be swiped by password-stealing malicious software. What follows is a brief tutorial on how to do that with Ubuntu, one of the more popular bootable Linux installations. Also known as "Live CDs," these are generally free, Linux-based operating systems that one can download and burn to a CD-Rom or DVD. The beauty of Live CDs is that they can be used to turn a Windows based PC into a provisional Linux computer, as Live CDs allow the user to boot into a Linux operating system without installing anything to the hard drive. Programs on a LiveCD are loaded into system memory, and any changes - such as browsing history or other activity -- are completely wiped