mysql 數據庫卸載不完全，配置出錯解決辦法
2024-07-24 12:58:40
供稿：網友
The security settings could not be applied to the database because the connection has failed with the following error.
Error Nr. 2003
Can't connect to MySQL server on 'localhost' (10061)
If a personal firewall is running on your machine, please make sure you have opened the TCP port 3306 for connections. Otherwise no client application can connect to the server. After you have opened the port please PRess [Retry] to apply the security settings.
If you are re-installing after you just uninstalled the MySQL server please note that the data directory was not removed automatically. Therefore the old passWord from your last installation is still needed to connect to the server. In this case please select skip now and re-run the Configuration Wizard from the start menu.
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The security settings could not be applied to the database because the connection has failed with the following error.
Error Nr. 1045
access denied for user 'root'@'localhost' (using password: YES)
If a personal firewall is running on your machine, please make sure you have opened the TCP port 3306 for connections. Otherwise no client application can connect to the server. After you have opened the port please press [Retry] to apply the security settings.
If you are re-installing after you just uninstalled the MySQL server please note that the data directory was not removed automatically. Therefore the old password from your last installation is still needed to connect to the server. In this case please select skip now and re-run the Configuration Wizard from the start menu.
MySQL 5.1 安裝過程中報apply security setting錯誤的解決辦法
1, 卸載MySQL
2, 刪除目錄 C:/Documents and Settings/All Users/Application Data/MySQL
3, 重新安裝MySQL 就 OK 啦
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[MySQL] Could not start the service MySQL 解決方法
安裝mysql 5.1.33,在運行Server Instance Configuration wizard時的Execute configurattion步驟中的第三項Start Service進出錯,錯誤提示為Could not start the service MySQL (出現這種情況一般是因為裝過mysql，卸載不干凈造成的。卸載后重啟后再重裝。注意看下服務，如果未能卸載，可以用mysqld-nt -remove卸載)。
具體方法如下:
查看服務中有沒有mysql,如果有將該服務停掉;
在控制面板中運行添加刪除程序，將mysql卸載;
卸載后打開注冊表，查看HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services 下的鍵值，如果有相關mysql鍵值(mysql、mysqladmin)則刪掉，即可;
重啟，將mysql的安裝殘余目錄刪掉 (查看服務，此時服務中已沒有mysql);
重新安裝mysql.安裝后先不要運行Server Instance Configuration wizard，重啟后在開始菜單中運行該向導，即可。
PS:一種值得參考的方法
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msyql安裝到最后一步start service錯誤解決方法
1,到控制面板里面先把mysql刪除.
2.到c盤C:/Program Files目錄下把mysql目錄刪除.
3.如果在其他盤還有設置目錄也要刪除.空目錄也要刪除
4.到regedit把注冊表
HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Services/Eventlog/Applications/MySQL
HKEY_LOCAL_MACHINE/SYSTEM/ControlSet002/Services/Eventlog/Applications/MySQL
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Eventlog/Applications/MySQL
有的話,全部刪除！
（技巧：用F3循環查找“mysql”）
5.如果任務管理器里有關mysql內容也刪除
6,把防火墻關了
7,重新裝mysql（這里我沒有重啟計算機）
重裝時候有必要的話,重啟計算機,停用IIS,和刪除temp里的臨時文件.
實在不行的話,配置mysql時候,把mysql服務換個服務名.
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刪除項時出錯。
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無法刪除 LEGACY_MYSQL51: 刪除項時出錯。
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確定
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解決辦法:注冊表項里右鍵增加administrators所有權限
本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/myyuren/archive/2009/12/22/5053150.aspx
