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This article mainly introduces how to solve the problem that mysql can not be installed. It is very detailed and has a certain reference value. Friends who are interested must finish it!

Difficult 1:MySQL 5.1 apply security setting error reported during installation

1. Uninstall MySQL

two。 Delete the directory C:\ Documents and Settings\ All Users\ Application Data\ MySQL.

3. Reinstall MySQL and OK.

Difficulty 2:MySQL hint Could not start the service MySQL hint

When installing mysql 5.1.33, there was an error in the third Start Service entry in the Execute configurattion step when running Server Instance Configuration wizard, and the error message was Could not start the service MySQL

Analysis: this situation is generally due to the installation of mysql, unloaded is not clean, uninstalled and restarted after reinstallation. Note that if you fail to uninstall the service, you can uninstall it with mysqld-nt-remove.

The specific methods are as follows:

1. Check to see if there is any mysql in the service, and if so, stop the service.

two。 Run add and remove programs in the control panel to uninstall mysql.

3. After uninstalling, open the registry and view the key values under HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\ Services. If there are relevant mysql keys (mysql, mysqladmin), you can delete them.

4. Restart and delete the remaining installation directory of mysql (check the service, there is no mysql in the service).

5. Reinstall mysql. Do not run Server Instance Configuration wizard after installation, restart and run the wizard in the start menu.

Difficult 3:msyql installation to the last step start service error

1. Delete the mysql in the control panel first.

two。 Go to the C:\ Program Files directory and delete the mysql directory.

3. If there are settings on other disks, delete them as well. The empty directory should also be deleted.

4. Go to regedit to change the registry:

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

If there is, delete it all! (tip: use F3 loop to find "mysql")

If the mysql content in the task manager is also deleted.

5. Turn off the firewall.

6. Reinstall mysql (I didn't restart the computer here).

If necessary to reinstall, restart the computer, deactivate IIS, and delete temporary files in temp.

If it really doesn't work, change the name of the mysql service to another service when configuring mysql.

The above is all the contents of how to solve the problem that mysql cannot install. Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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