2. 将下载文件解压到一个文件夹：D:\AZ\

3. 配置环境变量：Path：D:\AZ\mysql-8.0.18-winx64\bin

4. 创建my.ini文件，放在：D:\AZ\mysql-8.0.18-winx64\ 目录下

5. 编辑my.ini文件，我的内容如下，注意保存成ASCII格式：

[mysqld]

bind-address = 0.0.0.0

basedir = D:\AZ\mysql-8.0.18-winx64

datadir = D:\AZ\mysql-8.0.18-winx64\data

port = 3306

max_connections = 200

loose-default-character-set = utf8

explicit_defaults_for_timestamp = true

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

wait_timeout=315360000

interactive-timeout=315360000

[client]

port=3306

default-character-set = utf8

[WinMySQLadmin]

Server = D:\AZ\mysql-8.0.18-winx64\bin

6. 管理员运行cmd命令，进入D:\AZ\mysql-8.0.18-winx64\bin 目录下，运行：mysqld –-initialize

7. 上一步会产生一个 D:\AZ\mysql-8.0.18-winx64\data 文件夹

8. 安装MySQL服务，继续第6步，运行：mysqld install

9. 启动服务：net start mysql

10. 登陆：mysql -u root -p

11. 第10步会提示你输入密码，找到第7步生成的data文件夹，找到后缀.err的文件，搜索password关键字，查看临时密码，输入

12. 修改密码：

set password for 用户名@localhost = password('新密码');

# 如果上面不行，运行下面修改密码的方式

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '新密码';

ALTER USER 'root'@'localhost' IDENTIFIED BY '新密码';

FLUSH PRIVILEGES;  # 刷新权限

13. 退出登陆：exit

14. 停止服务：net stop mysql

15. 卸载服务：

注册表删除：

reg delete "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\eventlog\Application\MySQL" /f

reg delete "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\eventlog\Application\MySQL" /f   # 可能没有

reg delete "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Application\MySQL" /f  # 可能没有

reg delete "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\MySQL" /f  # 可能没有

net stop mysql

sc delete mysql

然后删除文件夹