unable to start

<p><span style="font-family: &quot;Cambria&quot;,&quot;serif&quot;; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin;"><span style="font-size: small;"><span style="color: #000000;">As a part of one assignment&nbsp;in course Internet Security I had to install <span style="mso-spacerun: yes;">&nbsp;</span>and use Apache server. After installation, I started it by selecting the option Start from start menu but error occured. Following message appeared:</span></span></span></p><p><span style="font-family: &quot;Cambria&quot;,&quot;serif&quot;; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin;"><span style="font-size: small;"></span></span></p><p><span style="font-family: &quot;Cambria&quot;,&quot;serif&quot;; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin;"><span style="font-size: small;"><span style="color: #000000;"><em>Address already in use: make_sock: could not bind to address [::]:80<br />no listening sockets available, shutting down<br />Unable to open logs</em></span></span></span></p><p><span style="font-family: &quot;Cambria&quot;,&quot;serif&quot;; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin;"><span style="font-size: small;"></span></span></p><p><span style="font-family: &quot;Cambria&quot;,&quot;serif&quot;; mso-ascii-theme-font: major-latin; mso-hansi-theme-font: major-latin;"><span style="font-size: small;"><span style="color: #000000;">After a lot of research on the Internet, finally I discovered possible solution.</span></span></span></p>