可启动光盘，用于启动计算机的 CD-ROM，自动安装会使用可启动的光盘来启动计算机。
为了适应装有可启动光盘的电脑，一些BIOS还允许将光驱指定为启动驱动器。
In order to adapt to a bootable CD-ROM with the computer, some BIOS will also allow the drive designated as the boot drive.
如图2所示，这个工具发布有一段时间了。 它的使用方法很像微软的“系统清理器”：从卡巴斯基的网站下载一个ISO文件，然后打造一个可启动的介质——光盘或U盘都行。
This tool, shown in Figure 2, has been around for a while and works much like Microsoft System Sweeper: you download an ISO file from the Kaspersky site and build bootable media —either CD or USB.
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