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安装MYSQL出错：a windows service with the name MYSQL already...service解决
今天把mysql5.1卸载了，想装个5.5，安装时提示：a windows service with the name MYSQL already exists.Please uninstall this service correctly or choose a different name for the new service.
可以尝试删除残留的注册表信息HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services下面找到MySQL注册表信息把它整个删掉后，重装mysql成功了！
过了这步到启动service时又提示：Cannot create windows service for mysql.error:0
WIN+R进入CMD命令行：
[html]
Microsoft Windows [版本 6.1.7600]
版权所有 (c) 2009 Microsoft Corporation。保留所有权利。
C:/Users/Stone>sc delete mysql
[SC] DeleteService 成功
C:/Users/Stone>
之后就搞定了！
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