Linux Live CDs have long been well known as a handy tool in PC repair. Personally I’ve used Linux CDs dozens of times to repair Windows problems, from virus scans to file retrieval to partition adjustments. As great as Live CDs are, they still have a few drawbacks, like an inability to save any new files or changes. Bootable USB sticks solve most of the problems with Live CDs. You can write to them, change the software or the whole system without burning a new CD, and carry them easily wherever you go.
There’s a new (Windows only, strangely enough) software tool out called LiLi USB Creator. LiLi makes it incredibly easy to create your own customized bootable Linux system on a USB stick, and even run it from within Windows using an portable copy of Virtualbox that’s included on the installation. Impressed? I am.