MySQL5.5 Upgrade MySQL5.7 under Windows

First step: Stop the original MySQL service, the Administrator command to open cmd, and then net stop MySQL

The second step: Back up the files of the original database, under the corresponding version directory of C:\MySQL, there is the data directory, copy this directory to another place to back up.

The third step: Run the MySQL uninstall program, you can use 360 or QQ Computer Management software Management, or Control Panel program inside to perform the uninstall.

Fourth step: Go to MySQL official website https://dev.mysql.com/downloads/installer/select Download: Mysql-installer-community-5.7.20.0.msi

Fifth Step: Choose Custom Installation Server:

The sixth step: my is win10,64 bit:

Seventh Step: Cancel the "Development components" check (because we only need to install MySQL server)

Eighth step: Press the prompt to click on Execute installation, missing Visual Studio redistributable, you can download the installation here and try again

Update for Visual C + + and Visual C + + Redistributable Package

Nineth step: Install MySQL server

Tenth step: Config Type Select "Development machine"

11th Step: After setting the root password, I canceled the boot

12th step: Click "Execute" and wait for the completion to be done.

13th step: Click Finish, the following update Catalog can be ignored. Test the connection using Heidisql.

MySQL5.5 Upgrade MySQL5.7 under Windows