Mamp won't start apache (Windows 10)

Do the following:MAMP -> Preferences -> PHP. Change Standard Version 7.3.7 to 7.2.14. Start the servers. After success, you can return to Standard Version 7.3.7.

I had this same problem, and the only thing that worked for me to get the Apache server started again was to change the PHP version to 7.2.14 in the Preferences area of MAMP:

MAMP > Preferences... > PHP > Standard Version > 7.2.14

Note: After I was able to get the Apache server started again, I tried to change the PHP version back to 7.3.7, but this broke the Apache server startup process again. The green dot would wink on, and then off. So I am leaving MAMP with PHP version 7.2.14 for now (since the version of PHP doesn't matter to me as long as it is 7.x and not 5.6.x).

A problem might be that the port apache uses is blocked by something else I can't remember that port but you can easily look that up.

I think world wide publishing Usually uses that same port as apache so unrun that and see if it works.

I know you said you checked the ports but world wide publishing is always running by default. So I'd check that.