Wampserver cannot start MySQL after installation is complete this may be because you have previously installed MySQL, because Wampserver has built-in MySQL. The workaround is to configure environment variables.
Locate My Computer or computer right-click, open Properties, and then turn on advanced system settings,
Then the environment variable
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And then inside the system variable,
First create a new variable mysql_home, the value of the variable is D:\wamp\bin\mysql\mysql5.6.17 (that is, MySQL decompression path), then find the path of the variable, in the value of the device to add%mysql_home%/bin Here, the environment variable is configured. Restart the wampserver, and you'll find Wampserver green and finally get the Vue.
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MySQL installation in Wamp,wamp after MySQL has been installed on the computer does not start a workaround