<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>The .vbox-prev(ious) is a backup file. I think it is overwritten
with a copy of the .vbox file every now and then when the .vbox
file is modified. The .vbox file is the actual configuration file,
and the one you have to edit to make this work. It is recommended
to close VirtualBox completely and wait several seconds (for the
VBoxSVC process to shut down) before editing the file.<br>
</p>
<p>--</p>
<p>Ivo<br>
</p>
<br>
<div class="moz-cite-prefix">Op 3-2-2017 om 12:45 schreef Jd Lyons:<br>
</div>
<blockquote
cite="mid:8E9D536E-994F-4427-AC27-578EAFB2981A@yahoo.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
I changed my CPU from one that supports VT-x to one that doesn’t,
now none of my virtual machines will run
<div class=""><br class="">
</div>
<div class="">
<p class="">Failed to open a session for the virtual machine <b
class="">Tiger</b>.</p>
<qt class="">
<p class="">VT-x is not available (VERR_VMX_NO_VMX).</p>
<table class="" bgcolor="#EEEEEE" border="0" cellpadding="0"
cellspacing="0" width="100%">
<tbody class="">
<tr class="">
<td class="">Result Code: </td>
<td class=""><tt class="">NS_ERROR_FAILURE (0x80004005)</tt></td>
</tr>
<tr class="">
<td class="">Component: </td>
<td class="">ConsoleWrap</td>
</tr>
<tr class="">
<td class="">Interface: </td>
<td class="">IConsole
{872da645-4a9b-1727-bee2-5585105b9eed}</td>
</tr>
</tbody>
</table>
<br class="">
</qt></div>
<div class=""><qt class="">I edited the .vbox-prev of the virtual
machines, and added:</qt></div>
<div class=""><qt class=""><br class="">
</qt></div>
<div class=""><qt class=""><HardwareVirtEx enabled=“false”/></qt></div>
<div class=""><qt class=""><br class="">
</qt></div>
<div class=""><qt class="">But every time I launch VB, it
overwrites the settings, removes <HardwareVirtEx
enabled=“false”/>.</qt></div>
<div class=""><qt class=""><br class="">
</qt></div>
<div class=""><qt class="">I can’t access the Acceleration tab in
VB, it’s greyed out, but it must have the VT-x checkbox
checked?</qt></div>
<div class=""><qt class=""><br class="">
</qt></div>
<div class=""><qt class="">Is there some preference file I need to
delete?</qt></div>
<div class=""><qt class=""><br class="">
</qt></div>
<div class=""><qt class="">macOS Sierra 10.12.2</qt></div>
<div class=""><qt class=""><br class="">
</qt></div>
<div class=""><qt class="">VB 5.1.14 r112924 (Qt5.6.2) </qt></div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
vbox-dev mailing list
<a class="moz-txt-link-abbreviated" href="mailto:vbox-dev@virtualbox.org">vbox-dev@virtualbox.org</a>
<a class="moz-txt-link-freetext" href="https://www.virtualbox.org/mailman/listinfo/vbox-dev">https://www.virtualbox.org/mailman/listinfo/vbox-dev</a>
</pre>
</blockquote>
<br>
</body>
</html>