*2022* Install Nginx on Windows 10 

Thanks for the comment, sometimes it takes few seconds to end the process, please check the services in windows task manager for nginx process after issuing the command in CMD and also check there may be multiple instance of process running, try to issue the command again and check, otherwise manually kill the process from task manager then inspect what process is starting nginx, for example if you are running as windows service with automatic mode it will repeatedly start the service, then you may have to put the service into manual mode to quit

Thanks for the question, first of all is the Nginx service running? if yes the url should be localhost and default port is 80 so you don't need to mention that

Making it available on the web is different process, you need to have a domain registration or at least a internet reachable public IP address, if you have both you can access it either via public IP xx.xx.xx.xx (xx indicates public ip address)

Yes, this setup can be used for DEV/TESTING.

You need to double click the nginx.exe, before you please make sure you are not running multiple times, by checking with your windows task list process list

Have you followed the instructions, after unzipping it, click on ngnix.exe, once you clicked it will be running in background, open the browser and type localhost and check it

Set proper environment variables