<p><a href="http://meta.stackexchange.com/questions/1672/please-allow-wildcards-in-tag-searches">Catch them all with the tilde (~)</a>.</p>

<p>So <kbd><a href="http://superuser.com/questions/tagged/windows~">windows~</a></kbd> will show you all of the following:</p>

<ul>
<li>windows</li>
<li>windows-xp</li>
<li>windows-7</li>
<li>but then it goes qwayzee and you get <strong>everything</strong> that starts with <kbd>windows</kbd>.</li>
</ul>