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最近在工作上遇到了MySQL重装的问题，今天记录一下我的解决过程。
首先因为某些原因，我不得不把mysql卸载，然后重装，不论我用控制面板的卸载删除程序方式还是安全卫士的卸载，都会遇到一个问题，就是安装到如下图位置，server start时就程序无响应了，一直死在那里：
于是，网上到处找解决办法按照大多数人的说法，我试了不行，照死：
安装MySQL出示未响应，一般显示在安装MySQL程序最后一步的2，3项就不动了。
这种情况一般是你以前安装过MySQL数据库服务项被占用了。
解决方法：
一种方法：你可以安装MySQL的时候在这一步时它默认的服务名是“MySQL” 只需要把这个名字改了就可以了。
二种方法：1、卸载MySQL 2、删除安装目录及数据存放目录 3、在注册表(regedit)查询mysql，全部删除 4、在c盘查询MySQL，全部删除 5、重新安装就好了
注意的是注册表 cmd -> regedit
1.HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Services/Eventlog/Application/MySQL 目录
2.HKEY_LOCAL_MACHINE/SYSTEM/ControlSet002/Services/Eventlog/Application/MySQL 目录
3.HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Eventlog/Application/MySQL 目录
4.HKEY_LOCAL_MACHINE/SYSTEM/CurrentControl001t/Services/MYSQL 目录
5.HKEY_LOCAL_MACHINE/SYSTEM/CurrentControl002/Services/MYSQL 目录
6.HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/MYSQL 目录
7.删除C:/Documents and Settings/All Users/Application Data/MySQL 目录
上面两种方法任选一种，重新安装新版MYSQL 就OK了。
注意：删除完成后一定要重启计算机，再进行安装。
用以上方法装了一下午，最终还是不行。
最后，因为我的服务器是Windows Server 2008 RC
所以我想是不是兼容性的问题，我下的是最新的mysql5.5.28
于是在如下图这一步的时候我把勾去掉了：
然后找到MySQL安装目录下的bin文件夹下的“MySQLInstanceConfig.exe”程序，右击属性如下图设置：
双击MySQLInstanceConfig.exe”程序一步一步下来，安装成功了终于，哈哈！
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