<p>J’ai trouvé that sometimes you just have to wait, but if it takes a significantly long time try the following:</p>
<ul>
<li>
<p>Cliquez sur le start button and type in services.msc</p>
</li>
<li>
<p>Stop the Windows Update Service.</p>
</li>
<li>
<p>Delete the contents of the C:\Windows\SoftwareDistribution folder</p>
</li>
<li>
<p>Start the Windows Update Service.</p>
</li>
<li>
<p>Try Windows Update again.</p>
</li>
</ul>