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Uefi启动是什么意思？Uefi启动和Bios启动的优势在哪里

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　　电脑启动分为Uefi启动和Bios启动，Uefi启动可以提高电脑开机的速度，让Windows更快的进入系统，而Bios启动想必大众都不陌生。那Uefi启动和Bios启动的优势区别在哪里？下面就和大家说一下Uefi启动和Bios启动的优势区别在哪里。

　　通俗的说，Uefi是一种新的主板引导初始化的标注设置，相对于Bios来说的，以前的u盘引导都是针对bios的，没法在uefi主板上引导Uefi的文件到PE里，也有的pe把这个精简了。Uefi全称“统一的可扩展固件接口”（Unified Extensible Firmware Interface）， 是一种详细描述类型接口的标准。这种接口用于操作系统自动从预启动的操作环境，加载到一种操作系统上。

　　Uefi运行流程

　　Uefi启动对比Bios启动的优势

　　1、安全性更强

　　Uefi启动需要一个独立的分区，它将系统启动文件和操作系统本身隔离，可以更好的保护系统的启动。即使系统启动出错需要重新配置，我们只要简单对启动分区重新进行配置即可。而且，对于Win8系统，它利用Uefi安全启动以及固件中存储的证书与平台固件之间创建一个信任源，可以确保在加载操作系统之前，近能够执行已签名并获得认证的“已知安全”代码和启动加载程序，可以防止用户在根路径中执行恶意代码。

　　Uefi Bios板卡兼容列表

　　2、启动配置更灵活

　　EFI启动和GRUB启动类似，在启动的时候可以调用EFIShell，在此可以加载指定硬件驱动，选择启动文件。比如默认启动失败，在EFIShell加载U盘上的启动文件继续启动系统。

　　3、支持容量更大

　　传统的Bios启动由于MBR的限制，默认是无法引导超过2.1TB以上的硬盘的。随着硬盘价格的不断走低，2.1TB以上的硬盘会逐渐普及，因此Uefi启动也是今后主流的启动方式。

　　以上也就是Uefi启动和Bios启动的优势区别在哪里的全部内容了。如还不知道Uefi启动是什么意思的，Uefi启动和Bios启动的优势的用户，可以参考一下上述的内容。这样你就知道这两个有什么区别了，希望在这里能够帮到大家。

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