linux装完windows时间长,重装Windows 10上的Linux子系统
之前听说Windows 10上面可以装Linux了，一时兴起，就捣鼓了起来，长时间不用了，结果又忘记root密码。哎，老了，记不住事情了。所以就上网查了一下如何卸载Linux子系统，再写一篇笔记吧，免得以后又忘记了。
打开CMD，输入lxrun，就会提示这条命令的使用方法，见下：
C:\Users\admin>lxrun
Warning: lxrun.exe is only used to configure the legacy Windows Subsystem for Linux distribution.
Distributions can be installed by visiting the Microsoft Store:
https://aka.ms/wslstore
Usage:
/install - Installs the subsystem
Optional arguments:
/y - Do not prompt user to accept or create a subsystem user
/uninstall - Uninstalls the subsystem
Optional arguments:
/full - Perform a full uninstall
/y - Do not prompt user to confirm
/setdefaultuser - Sets the default subsystem user. If the user account does not exist it will be created.
Optional arguments:
username - Supply the username
/y - If username is supplied, do not prompt to create a password
输入：lxrun /uninstall 就可以开始卸载原来的Linux子系统了。
C:\Users\admin>lxrun /uninstall
Warning: lxrun.exe is only used to configure the legacy Windows Subsystem for Linux distribution.
Distributions can be installed by visiting the Microsoft Store:
https://aka.ms/wslstore
This will uninstall Ubuntu on Windows.
This will remove the Ubuntu environment as well as any modifications and new applications with the exception of:
C:\Users\admin\AppData\Local\lxss\home
C:\Users\admin\AppData\Local\lxss\root
Type "y" to continue: y
Uninstalling...
再输入bash查看一下，验证Ubuntu已经被卸载。
C:\Users\admin>bash
Windows Subsystem for Linux has no installed distributions.
Distributions can be installed by visiting the Microsoft Store:
https://aka.ms/wslstore
Press any key to continue...
接下来安装Ubuntu Linux，输入命令：lxrun /install
C:\Users\admin>lxrun /install
Warning: lxrun.exe is only used to configure the legacy Windows Subsystem for Linux distribution.
Distributions can be installed by visiting the Microsoft Store:
https://aka.ms/wslstore
This will install Ubuntu on Windows, distributed by Canonical and licensed under its terms available here:
https://aka.ms/uowterms
Type "y" to continue: y
Downloading from the Microsoft Store... 100%
Extracting filesystem, this will take a few minutes...
Error: 0x800706ba
擦，有Error，本机电脑没有权限？查了一下，我确实没有admin权限。但是我重试了一下，结果这次成功了。
不过又在网上查了一下，如果你重试了，还是不行，请参考下面的方法有可能解决你的安装失败问题：
在下面的启用或关闭Windows功能里启用适用于Linux的Windows子系统，然后再试一遍吧。
