<div class="content" name="RecommendedHardDiskSpace" uuid="dc4930ca-601b-49ff-be1c-d90c6391de25"><p>The IUpdate::RecommendedHardDiskSpace (opnum 37) method
retrieves the free hard disk space recommended for the installation of the
update.</p><dl>
<dd>
<div><pre> HRESULT RecommendedHardDiskSpace(
   [out, retval] LONG* retval
 );
</pre></div>
</dd></dl><p><b>retval: </b>The recommended free disk space, in
megabytes, for installation of the update. If there is no recommended hard disk
space for this update, <i>retval</i> MUST be set to 0x00000000.</p><p><b>Return Values: </b>The method MUST return
information in an <b>HRESULT</b> data structure. The severity bit in the
structure identifies the following conditions:</p><ul><li><p><span><span>  </span></span>If
the severity bit is set to 0, the method completed successfully.</p>
</li><li><p><span><span>  </span></span>If
the severity bit is set to 1, the method failed and encountered a fatal error.</p>
</li></ul><p><b>Exceptions Thrown:</b> No exceptions are thrown beyond
those thrown by the underlying RPC protocol <span><a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a></span>.</p><p>The server SHOULD return the value of the <b>RecommendedHardDiskSpace</b>
ADM element.</p></div>