相关阅读：
1、解压
2、在目录D:\Program Files\mysql-5.7.14-winx64下复制my-default.ini，放在与其相同目录下，名称显示为my.ini；
3、编辑my.ini
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# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.
[client]
default-character-set=utf8
[mysqld]
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
# These are commonly set, remove the # and set as required.
basedir = D:\Program Files\mysql-5.7.14-winx64
datadir = D:\Program Files\mysql-5.7.14-winx64\data
tmpdir = D:\Program Files\mysql-5.7.14-winx64\data
socket = D:\Program Files\mysql-5.7.14-winx64\data\mysql.sock
port = 3306
# server_id = .....
max_connections = 100
table_open_cache = 256
query_cache_size = 1M
tmp_table_size = 32M
thread_cache_size = 8
innodb_data_home_dir = D:\Program Files\mysql-5.7.14-winx64\data
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 128M
innodb_buffer_pool_size = 128M
innodb_log_file_size = 10M
innodb_thread_concurrency = 16
innodb-autoextend-increment = 1000
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
join_buffer_size = 128M
sort_buffer_size = 32M
read_rnd_buffer_size = 32M
max_allowed_packet = 32M
explicit_defaults_for_timestamp = true
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
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4、在解压目录D:\Program Files\mysql-5.7.14-winx64下新建data文件（不用在文件夹做其他操作）
5、以管理员身份进入cmd界面（必须是管理员）
6、切换至mysql解压目录\bin下，初始化data目录
输入命令：mysqld --initialize-insecure (生成无密码的root用户)
或：mysqld --initialize(生成带随机密码的root用户)
7、初始化完成后启动mysql服务
输入命令：net start mysql
8、开始使用mysql
输入命令：mysql -u root -p
9、停止mysql服务
输入命令：net stop mysql
10、忘记root密码后如何登录
101、 关闭正在运行的MySQL服务。
10.2、 打开DOS窗口，转到mysql\bin目录。
10.3、输入mysqld --skip-grant-tables 回车。--skip-grant-tables 的意思是启动MySQL服务的时候跳过权限表认证。
10.4、再开一个DOS窗口（因为刚才那个DOS窗口已经不能动了），转到mysql\bin目录。
10.5、输入mysql回车，如果成功，将出现MySQL提示符 >。
10.6、连接权限数据库： use mysql; 。
10.7、改密码：update user set password=password("123") where user="root";（别忘了最后加分号） 。
10.8、刷新权限（必须步骤）：flush privileges; 。
10.9、 退出 quit。
10.10、注销系统，再进入，使用用户名root和刚才设置的新密码123登录。
11、修改root用户密码
5.7版本以前：
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update user set authentication_string =password( 'root') where user = 'root;
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5.7版本以后：
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update user set password=password( 'root') where user = 'root;
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以上所述是小编给大家介绍的mysql 5.7.14 免安装版注意事项(精)，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
原文链接：http://www.cnblogs.com/psetpsetpset/p/5829224.html