Computer can't install an operating system, and all are BIOS, MBR, UEFI, GPT result-computer systems, BIOS-IT information

Many users buy a new computer, or computer reinstall the system when there is no boot USB stick installation situations. The reason, still failed to clear BIOS, MBR, UEFI, GPT and complex relationships. Today, small series and share with you their love and hate it.

BIOS and UEFI

Lift the BIOS should be known no one knows you? UEFI BIOS upgrade version, its greatest character BIOS can be monotonous blue background or black white replace graphic style can be set through a mouse click, but seemed to be very tall to be.

MBR and GPT

The partition table of the MBR is the traditional type, the biggest disadvantage is larger than 2T hard drive are not supported. GPT makes up MBR of this shortcoming, the maximum support 18EB hard disk, is a UEFI-based partition structure.

Now all Windows systems support the MBR, GPT supports only 64-bit systems.

In addition, boot the system BIOS supports only MBR and GPT support for UEFI boot systems only. So now most of computer motherboard BIOS integrating UEFI and BIOS or UEFI integration manner compatible with both MBR and GPT system purposes.

Boot the system as GPT and MBR is different, so when we installed the system, only faces need to manually turn on UEFI, or be set to Legacy mode or in other ways to solve them.

Combination of BIOS+MBR and UEFI+GPT two lossless transformation can be directly, interested in children's shoes can refer to the online tutorial, DiskGenius software can achieve.

Next, small series with a need for computer (small series of personal experiences, are typical), briefly unable to find USB disk (boot disk) solution.

For Lenovo and Think one computer, M7100z, when it is turned on again and press the F1 key to enter the BIOS. Since M7100z BIOS is already finished, so this article describes setting options in translation. First to enter BIOS "boot" tab, the first "compatible modules" setting in the "open" State.

And then "Boot Mode" is amended as "Legacy", save the BIOS exit to restart, and then press F12 for the boot device menu, theoretically, at this point you can see the system's USB options.

But new problems are at this time only the boot device menu DVD and SSD, and the USB memory stick is not recognized!

After some consultation, I need access to the BIOS "boot" tab above the "main start order" screen. USB boot BIOS classified to "boot sequence not included" (if that is corresponds to the English version of BIOS is Excluded form boot order) in the list.

At this point, we need to move the cursor to the line of USB flash drive, press the f key lock, and then press the x key will transfer it to the list of recognized correctly by the BIOS.

Save BIOS reboot the system, press F12 for the boot device menu again, returning to the system u finally appeared!

Select the u-boot, later will be able to enter the system setup screen. If you see the need for computer tutorials, estimate their computer can solve similar problems occur.

电脑装不了操作系统，都是BIOS、MBR、UEFI和GPT关系乱导致 - 电脑系统,BIOS - IT资讯

很多用户在新买电脑，或是给已有电脑重装系统时都出现过怎么都无法引导U盘安装的情况。究其原因，还是没能搞清楚BIOS、MBR、UEFI和GPT的复杂关系。所以，今天小编就和大家分享一下它们之间的爱恨情仇吧。

BIOS和UEFI

提起BIOS应该是无人不知无人不晓吧？而UEFI就是BIOS的升级版，它最大的特色就能可以把BIOS单调的蓝底白字或黑底白字替换为图文并茂的样式，可以通过鼠标点击进行设置，反正看起来就是很高大上的样子了。

MBR和GPT

MBR是传统的分区表类型，最大缺点是不支持容量大于2T的硬盘。GPT则弥补了MBR这个缺点，最大支持18EB的硬盘，是基于UEFI使用的磁盘分区架构。

其中，目前所有的Windows系统均支持MBR，但GPT却只有64位系统才能支持。

此外，BIOS只支持MBR引导系统，而GPT仅支持UEFI引导系统。所以，现在电脑的主板大多采用BIOS集成UEFI，或UEFI集成BIOS的方式达到同时兼容MBR和GPT引导系统的目的。

由于GPT引导系统的方式与MBR不同，所以我们在安装系统时，才面临需要手动开启UEFI，或是将其设置成Legacy模式等方式加以解决。

至于BIOS+MBR和UEFI+GPT两个组合可以直接无损转换，感兴趣的童鞋可以参考网上教程，使用DiskGenius这款软件就能实现。

下面，小编就以一款颇为极品的电脑（小编的亲身经历哦，很有代表性的），简单介绍一下找不着U盘（引导盘）的解决方法。

对M7100z在内的联想和Think一体电脑而言，开机时反复按F1键即可进入BIOS。由于M7100z的BIOS已经汉化，所以本文就以翻译过来的设置选项进行说明。首先进入BIOS的“启动”选项卡，先将“兼容模块”设定在“打开”状态。

再将“Boot Mode”修改为“Legacy”，保存BIOS退出重启，然后按F12进入启动设备菜单，理论上此时就能看到装有系统的U盘选项了。

但新的问题是此时启动设备菜单竟然只有DVD和SSD，并没有识别出U盘！

经过一番咨询，原来还需进入BIOS的“启动”选项卡上面的“主要启动顺序”界面。U盘所在的启动项是被BIOS归类到了“未包含的启动顺序”（如果是英文版BIOS对应的则是Excluded form boot order）列表中的。

此时，需要我们将光标移动到U盘所在的一行，先按F键锁定，再按X键就能将它转移到能被BIOS正确识别的列表中了。

保存BIOS重启系统，再次按F12进入启动设备菜单，久违的系统U盘终于出现了！

选择U盘引导，稍后就能进入系统安装界面。如果你看明白了这款极品电脑的教程，估计自己的电脑出现类似问题也能解决了。