Add another possible tweaks (#17492#note-10)

wiki/src/install/inc/steps/pc_boot_menu.inline.html

@@ -163,6 +163,20 @@ apply to certain computer models.</p>
   <li>
     <p>Disable <strong>Fast boot</strong>.</p>
   </li>
+
+  <li>
+    <p>Enable <strong>CSM boot</strong>.</p>
+  </li>
+
+  <li>
+    <p>Enable <strong>Legacy boot</strong> in addition to UEFI.
+    The computer might not start anymore on its regular operating system
+    if you disable UEFI completely or if you only enable Legacy boot.</p>
+  </li>
+
+  <li>
+    <p>Try to upgrade the BIOS. To do so, refer to the support website of
+    the computer manufacturer.</p></li>
 </ul>
 
 <div class="bug" id="report">