FlashBoot is a tool to create bootable USB disks, USB Flash Memory keys and cards mainly. What are the benefits of such devices for you? Let's see: unlike the most bootable medias, bootable USB Flash keys are very handy: compared to floppies, they have much bigger size, speed and reliability, compared to CD-ROMs, they are random write access devices, so you can backup your data to the same media where you booted from, without need to reformat (reburn) the entire media. Again, the cost per megabyte for them continues to cut down, which is not the case for CD-ROMs and floppies.
And the most important thing is that you can use bootable USB Flash Disk almost everywhere, on any PC that has USB port. Are you going to repair your PC at your work without CD-ROMs, floppies or other media? No problems anymore. Or you have a laptop but without a CD-ROM drive? Even if with a CD-ROM drive, you can't work with it for a long time: boot device is accessed quite often, and battery power is obviously not enough to supply laser for a long time. Perhaps you are home user with a desktop PC. And you are ready to repair it with your favorite bootable CD-ROM, OK. But what if CD-ROM drive fails? Will you be able to boot or to get your backup data back?
With bootable USB Flash Memory key, you may boot every PC with USB ports, regardless of non-present or broken devices, because there's no need for any extra devices. You don't have a media size limit of 700 or 800 MB anymore, and buy a big or a small disk depending on your needs. Just after boot, on every PC, you may save your files to the same device from which you booted, or restore them back. There's no need to reformat (reburn) the boot disk, you just copy files and folders, and there's no need for extra hardware for such operations. Of course you may do some things you can't do under your OS: copy/modify system files (they are busy when OS is running), reinstall OS, repartition your main hard disk etc.

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