MySQL server by default accepts connections from tpc port 3306.
So both your MySQL Server's are trying to use the same port THATS NOT ALLOWED so which ever MySQL server starts second will FAIL because it cannot get access to port 3306.
As WAMPServers MySQL Server is configured to only start on a manual request, and the other MySQL server is probably set to start `Automatically at boot WAMPServers MySQL will never start.
Option 1
You only need ONE MySQL server to run hundereds of seperate databases, so uninstall the other MySQL server after backing up any databases. Then restore the databases to the MySQL Server that comes with WAMPServer.
Option 2
Change the port that one of your MySQL Servers uses from 3306 to 3307. Then you can run 2 MySQL Servers on the same machine. And of course have twice the memory overhead.
If you change the WAMPServer MySQL Server config you have to do this:
Edit the \wamp\bin\mysql\mysqlx.y.z\my.ini
file
Change every reference to port 3306 to 3307.
Edit the PHP.INI
file ( use the WAMPManager menus to ensure you are editing the correct file).
Change this line so that PHP knows you have moved MySQL to another port
mysqli.default_port = 3306
To
mysqli.default_port = 3307
Possible issues you may have
When installing MySQL server manually it often places its my.ini or my.cnf into the C\WINDOWS\
folder structure. This is a pain as that one my.ini will then be picked up and used by any MySQL server running on your machine, by virtue of the search order MySQL uses to find it's ini file.
If this is the case on your system, you will have to move that file back into the folder structure of the other (non WAMPServer) MySQL Server install.
In short its much simpler to have only one MySQL Server installed on your system, at least until you become more familiar and experienced with MySQL Server and its operation.
YOUR SECOND ISSUE
2. Warning from MySQL, Event Id 100 - "TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option
Edit your my.ini and add this line in the [wampmysqld]
section.
[wampmysqld]
explicit_defaults_for_timestamp