wampserver 404 error and server offline

I'm getting a 404 resource not found error when clicking on localhost wampserver shows offline when hovering over the task icon. It shows green. Firewall is disabled, and I changed the default listening port to 8443. Also IIS is not enabled. Please help. Thanks.
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In a command prompt enter
netstat -o -n -a | findstr 0.0:8443

Goto Task Manager and the Services Tab
Under PID look for the last number in the command prompt
e.g you may see in the command prompt
TCP      0.0.0.:8443      0.0.0.:0      LISTENING     2020
You need to look for 2020

Let us know what program is on that PID

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404 means page not found, so the server is running. the page you're asking for is just not available. what is offline is probably the associated alias or your wamp configure virtual hosts and "localhost" is not among them
Doesn't mean the Wamp is running....
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it does not mean that mysql is running or php working in any way but it does mean that apache is. apache is the one saying "resource not found"
centemAuthor Commented:
The result pid after executing the following command:
netstat -o -n -a | findstr 0.0:8443 is 1700

Task mgr shows wampapache as the program using that pid.

But wampserver still shows 404 when clicking on localhost.
obviously. you'd never get a 404 if apache was not running. you're just asking for a page that does not exist. you can have a full debug in the log but you most likely either typed something weird in the address bar, or have an issue with aliases or vhosts. not knowing the content of your address bar or apache's config, it is difficult to help. if you still can't figure it out, please provide the required info
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