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I recently have Visual Studio 2022 installed and had used it for approximately 2 weeks. Today in all of a sudden when I tried to start Visual Studio, it showed up a error and told me to go look at the ActivityLog.xml:
<?xml version="1.0" encoding="utf-16"?>
<?xml-stylesheet type="text/xsl" href="#stylesheet"?>
<activity>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" id="stylesheet" xml:id="stylesheet">
<xsl:output method="html" encoding="utf-16"/>
<!-- Don't reprint text nodes within the xsl:stylesheet node -->
<xsl:template match="text()"/>
<xsl:template match="activity">
<head>
<title>Activity Monitor Log</title>
<style type="text/css">
body{ text-align: left; width: 100%; font-family: Verdana, sans-serif; }
table{ border: none; border-collapse: separate; width: 100%; }
tr.title td{ font-size: 24px; font-weight: bold; }
th{ background: #d0d0d0; font-weight: bold; font-size: 10pt; text-align: left; }
tr{ background: #eeeeee}
td, th{ font-size: 8pt; padding: 1px; border: none; }
tr.info td{}
tr.warning td{background-color:yellow;color:black}
tr.error td{background-color:red;color:black}
span {text-decoration:underline}
a:hover{text-transform:uppercase;color: #9090F0;}
</style>
</head>
<body>
<table>
<tr class="title">
<td colspan="7">Activity Monitor Log</td>
</tr>
<tr>
<td colspan="2">infos</td>
<td colspan="5">
<xsl:value-of select="count(entry[type='Information'])"/>
</td>
</tr>
<tr>
<td colspan="2">warnings</td>
<td colspan="5">
<xsl:value-of select="count(entry[type='Warning'])"/>
</td>
</tr>
<tr>
<td colspan="2">errors</td>
<td colspan="5">
<xsl:value-of select="count(entry[type='Error'])"/>
</td>
</tr>
<tr>
<th width="20">#</th>
<th width="50">Type</th>
<th>Description</th>
<th width="280">GUID</th>
<th>Hr</th>
<th>Source</th>
<th>Time (UTC)</th>
</tr>
<xsl:apply-templates/>
</table>
</body>
</xsl:template>
<xsl:template match="entry">
<!-- example
<entry>
<record>136</record>
<time>2004/02/26 00:42:59.706</time>
<type>Error</type>
<source>Microsoft Visual Studio</source>
<description>Loading UI library</description>
<guid>{00000000-0000-0000-0000-000000000000}</guid>
<hr>800a006f</hr>
<path></path>
</entry>
-->
<xsl:choose>
<xsl:when test="type='Information'">
<tr id="info" class="info">
<td>
<xsl:value-of select="record"/>
</td>
<td></td>
<xsl:call-template name="row"/>
</tr>
</xsl:when>
<xsl:when test="type='Warning'">
<tr id="warning" class="warning">
<td>
<xsl:value-of select="record"/>
</td>
<td>Warning</td>
<xsl:call-template name="row"/>
</tr>
</xsl:when>
<xsl:when test="type='Error'">
<tr id="error" class="error">
<td>
<xsl:value-of select="record"/>
</td>
<td>ERROR</td>
<xsl:call-template name="row"/>
</tr>
</xsl:when>
</xsl:choose>
</xsl:template>
<xsl:template name="row">
<td id="description">
<xsl:value-of select="description"/>
<xsl:if test="path">
<br/>          <xsl:value-of select="path"/>
</xsl:if>
</td>
<td id="guid">
<xsl:value-of select="guid"/>
</td>
<td id="hr">
<xsl:value-of select="hr"/>
</td>
<td>
<xsl:value-of select="source"/>
</td>
<td>
<xsl:value-of select="time"/>
</td>
</xsl:template>
</xsl:stylesheet>
<entry>
<record>1</record>
<time>2022/08/13 01:18:20.821</time>
<type>Information</type>
<source>VisualStudio</source>
<description>Microsoft Visual Studio 2022 version: 17.0.32419.317</description>
</entry>
<entry>
<record>2</record>
<time>2022/08/13 01:18:20.821</time>
<type>Information</type>
<source>VisualStudio</source>
<description>Log ID</description>
<guid>{C3CB92A7-3DD0-4D5B-A44F-325D64C2F84F}</guid>
</entry>
<entry>
<record>3</record>
<time>2022/08/13 01:18:20.821</time>
<type>Information</type>
<source>VisualStudio</source>
<description>Running in isolation mode.</description>
</entry>
<entry>
<record>4</record>
<time>2022/08/13 01:18:20.825</time>
<type>Information</type>
<source>VisualStudio</source>
<description>Looking for master PkgDef file</description>
<path>F:\Visual Studio\Community 2022\Common7\IDE\master.pkgdef</path>
</entry>
<entry>
<record>5</record>
<time>2022/08/13 01:18:20.833</time>
<type>Information</type>
<source>VisualStudio</source>
<description>Creating PkgDefCacheNonVolatile</description>
</entry>
<entry>
<record>6</record>
<time>2022/08/13 01:18:20.833</time>
<type>Information</type>
<source>VisualStudio</source>
<description>PkgDefCache flags</description>
<hr>00013801</hr>
</entry>
<entry>
<record>7</record>
<time>2022/08/13 01:18:20.870</time>
<type>Error</type>
<source>VisualStudio</source>
<description>Failed to initialize Registry Root Hive</description>
<hr>800703f1</hr>
</entry>
<entry>
<record>8</record>
<time>2022/08/13 01:18:20.870</time>
<type>Warning</type>
<source>VisualStudio</source>
<description>Unable to initialize cache</description>
<hr>800703f1</hr>
</entry>
<entry>
<record>9</record>
<time>2022/08/13 01:18:20.870</time>
<type>Error</type>
<source>VisualStudio</source>
<description>Failure calling InitializeAppID.</description>
<hr>800703f1</hr>
</entry>
</activity>
![![230912-image.png][1]][1]
I have looked at similar posts about this issue and I have not yet to find a solution. I tried reinstalling Visual Studio and disabled every anti-virus software I have on my computer and I've tried running the program in Administrator mode but nothing has worked out so far.
Maybe you have too many anti-virus and firewall software. Did you try loading, investigate and unloading the privateregistry.bin file manually using Registry Editor, according to https://developercommunity.visualstudio.com/t/failed-to-initialize-registry-root-hive/227310?
I checked the activity log at it says Failed to initialize Registry Root Hive and Failed Calling InitializeAppID
Hello, may I know if you have got any chance to check Viorel’s reply? Please try to start Windows in Safe Mode and run your Visual Studio to see if antivirus software is blocking VS.
Meanwhile, you can update your VS2022 to the latest version.