MySQL cannot be installed

Since MySQL has been installed before, after it is uninstalled and reinstalled, The startserver does not respond each time to the last step, because the previous MySQL has not been uninstalled completely. Uninstall step: 1. unmount mysql2. in the control panel, go to the installation disk: ProgramFiles directory, and delete the mysql directory. 3. Delete the directory if there are other disk settings, and delete the empty directory.

Since MySQL has been installed before, after it is uninstalled and reinstalled, the start server does not respond each time to the last step, because the previous MySQL has not been uninstalled completely. Uninstall steps: 1. Go to the control panel to uninstall mysql 2. delete the mysql directory from the installation disk: \ Program Files directory. if you want to delete a directory in another disk, you must also delete the empty directory.

Since MySQL has been installed before, after it is uninstalled and reinstalled, the start server does not respond each time to the last step, because the previous MySQL has not been uninstalled completely.

Uninstall procedure:

1. uninstall mysql on the control panel.

2. Delete the mysql directory from the installation disk: \ Program Files directory.

3. If you want to delete the directory in another disk, you must also delete the empty directory.

4. Go to regedit to modify the registry and delete it:

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

5. Be sure to delete the directory C: \ Documents ents and Settings \ All Users \ Application Data \ MySQL

Because the directory C: \ Documents ents and Settings \ All Users \ Application Data \ MySQL is a system-protected directory, you must first modify the user permission to enter the folder.

The installation is successful after you reinstall it.

For the above content, refer to: mysql installation Failure Analysis