CAT Auto Pulish for Windows Release Messages - 20191018174709 (#1379)

* Update manage-protection-updates-windows-defender-antivirus.md

* Update manage-protection-updates-windows-defender-antivirus.md

* CAT Auto Pulish for Windows Release Messages - CAT_AutoPublish_20191018163348 (#1378)
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<table border ='0'><tr><td width='65%'>Summary</td><td width='15%'>Originating update</td><td width='10%'>Status</td><td width='10%'>Date resolved</td></tr>
<tr><td><div id='248msg'></div><b>dGPU occasionally disappear from device manager on Surface Book 2</b><br>Some apps or games may close or fail to open on Surface Book 2 devices with Nvidia dGPU.<br><br><a href = '#248msgdesc'>See details ></a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>October 11, 2019 <br>03:15 PM PT</td></tr>
<tr><td><div id='248msg'></div><b>dGPU occasionally disappear from device manager on Surface Book 2</b><br>Some apps or games may close or fail to open on Surface Book 2 devices with Nvidia dGPU.<br><br><a href = '#248msgdesc'>See details ></a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>October 18, 2019 <br>04:33 PM PT</td></tr>
<tr><td><div id='351msg'></div><b>Intermittent issues when printing</b><br>The print spooler service may intermittently have issues completing a print job and results print job failure.<br><br><a href = '#351msgdesc'>See details ></a></td><td>OS Build 18362.357<br><br>September 23, 2019<br><a href ='https://support.microsoft.com/help/4522016' target='_blank'>KB4522016</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4517389' target='_blank'>KB4517389</a></td><td>October 08, 2019 <br>10:00 AM PT</td></tr>
<tr><td><div id='335msg'></div><b>Audio in games is quiet or different than expected</b><br>Microsoft has received reports that audio in certain games is quieter or different than expected.<br><br><a href = '#335msgdesc'>See details ></a></td><td>OS Build 18362.356<br><br>September 10, 2019<br><a href ='https://support.microsoft.com/help/4515384' target='_blank'>KB4515384</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4517211' target='_blank'>KB4517211</a></td><td>September 26, 2019 <br>02:00 PM PT</td></tr>
<tr><td><div id='336msg'></div><b>IME may become unresponsive or have High CPU usage</b><br>Some Input Method Editor (IME) including ChsIME.EXE and ChtIME.EXE, may become unresponsive or may have high CPU usage.<br><br><a href = '#336msgdesc'>See details ></a></td><td>OS Build 18362.356<br><br>September 10, 2019<br><a href ='https://support.microsoft.com/help/4515384' target='_blank'>KB4515384</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>September 19, 2019 <br>04:08 PM PT</td></tr>
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- type: markdown
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<table border ='0'><tr><td width='65%'>Details</td><td width='15%'>Originating update</td><td width='10%'>Status</td><td width='10%'>History</td></tr>
<tr><td style='border-left-width:1px;border-right-width:1px;border-bottom-width:1px;'><div id='248msgdesc'></div><b>dGPU occasionally disappear from device manager on Surface Book 2</b><div>Microsoft has identified a compatibility issue on some Surface Book 2 devices configured with Nvidia discrete graphics processing units (dGPUs). After updating to Windows 10, version 1903 (the May 2019 Update), some apps or games that needs to perform graphics intensive operations may close or fail to open.</div><div>&nbsp;</div><div>To safeguard your update experience, we have applied a compatibility hold on Surface Book 2 devices with Nvidia dGPU from being offered Windows 10, version 1903 until&nbsp;this issue is resolved.</div><div>&nbsp;</div><div><strong>Affected platforms:</strong></div><ul><li>Client: Windows 10, version 1903</li></ul><div></div><div><strong>Resolved:&nbsp;</strong>To resolve this issue, you will need to update the firmware of your Surface Book 2&nbsp;device. Please see the <a href=\"https://support.microsoft.com/help/4055398/surface-book-2-update-history\" target=\"_blank\">Surface Book 2 update history page</a><strong>&nbsp;</strong>for instructions on how to install the October 2019 updates on your device. There is no update for Windows needed for this issue.</div><div>&nbsp;</div><div>The safeguard hold will be removed in the coming weeks.</div><br><a href ='#248msg'>Back to top</a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>Resolved:<br>October 11, 2019 <br>03:15 PM PT<br><br>Opened:<br>July 12, 2019 <br>04:20 PM PT</td></tr>
<tr><td style='border-left-width:1px;border-right-width:1px;border-bottom-width:1px;'><div id='248msgdesc'></div><b>dGPU occasionally disappear from device manager on Surface Book 2</b><div>Microsoft has identified a compatibility issue on some Surface Book 2 devices configured with Nvidia discrete graphics processing units (dGPUs). After updating to Windows 10, version 1903 (the May 2019 Update), some apps or games that needs to perform graphics intensive operations may close or fail to open.</div><div>&nbsp;</div><div>To safeguard your update experience, we have applied a compatibility hold on Surface Book 2 devices with Nvidia dGPU from being offered Windows 10, version 1903 until&nbsp;this issue is resolved.</div><div>&nbsp;</div><div><strong>Affected platforms:</strong></div><ul><li>Client: Windows 10, version 1903</li></ul><div></div><div><strong>Resolved:&nbsp;</strong>To resolve this issue, you will need to update the firmware of your Surface Book 2&nbsp;device. Please see the <a href=\"https://support.microsoft.com/help/4055398/surface-book-2-update-history\" target=\"_blank\">Surface Book 2 update history page</a><strong>&nbsp;</strong>for instructions on how to install the October 2019 updates on your device. There is no update for Windows needed for this issue.</div><div>&nbsp;</div><div>The safeguard hold has been removed. Please note, it can take up to 48 hours before you can update to offered Windows 10, version 1903.</div><br><a href ='#248msg'>Back to top</a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>Resolved:<br>October 18, 2019 <br>04:33 PM PT<br><br>Opened:<br>July 12, 2019 <br>04:20 PM PT</td></tr>
<tr><td style='border-left-width:1px;border-right-width:1px;border-bottom-width:1px;'><div id='255msgdesc'></div><b>Domain connected devices that use MIT Kerberos realms will not start up</b><div>Devices connected to a domain that is configured to use MIT Kerberos realms will not start up or may continue to restart after installation of <a href='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a>. Devices that are domain controllers or domain members are both affected.</div><div><br></div><div>To safeguard your update experience, we have applied a compatibility hold on devices configured to use MIT Kerberos realm from being offered Windows 10, version 1903 or Windows Server, version 1903.</div><div><br></div><div><strong>Note </strong>If you are not sure if your device is affected, contact your administrator.&nbsp;Advanced users can check for “Define interoperable Kerberos v5 realm settings” policy under Computer Configuration -&gt; Policies -&gt; Administrative Templates &gt; System -&gt; Kerberos or check if this registry key exists:</div><pre class=\"ql-syntax\" spellcheck=\"false\">HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\Kerberos\\MitRealms
</pre><div><br></div><div><strong>Affected platforms:</strong></div><ul><li>Client: Windows 10, version 1903; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10, version 1803; Windows 10, version 1709; Windows 10, version 1703; Windows 10 Enterprise LTSC 2016; Windows 10, version 1607</li><li>Server: Windows Server, version 1903; Windows Server, version 1809; Windows Server 2019; Windows Server, version 1803; Windows Server, version 1709 ; Windows Server 2016</li></ul><div></div><div><strong>Resolution: </strong>This issue was resolved in <a href='https://support.microsoft.com/help/4512941' target='_blank'>KB4512941</a> and the safeguard hold has been removed. Please note, it can take up to 48 hours before you can update to offered Windows 10, version 1903 or Windows Server, version 1903.</div><br><a href ='#255msg'>Back to top</a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4512941' target='_blank'>KB4512941</a></td><td>Resolved:<br>August 30, 2019 <br>10:00 AM PT<br><br>Opened:<br>July 25, 2019 <br>06:10 PM PT</td></tr>
<tr><td style='border-left-width:1px;border-right-width:1px;border-bottom-width:1px;'><div id='254msgdesc'></div><b>Issues updating when certain versions of Intel storage drivers are installed</b><div>Intel and Microsoft have found incompatibility issues with certain versions of the Intel Rapid Storage Technology (Intel RST) drivers and the Windows 10 May 2019 Update (Windows 10, version 1903).&nbsp;&nbsp;</div><div><br></div><div>To safeguard your update experience, we have applied a compatibility hold on devices with Intel RST&nbsp;drivers, versions<strong> 15.1.0.1002</strong>&nbsp;through version&nbsp;<strong>15.5.2.1053</strong>&nbsp;installed from installing or being offered Windows 10, version 1903 or Windows Server, version 1903, until the driver has been updated.</div><div><br></div><div>Versions&nbsp;<strong>15.5.2.1054 or later</strong>&nbsp;are compatible, and a device that has these drivers installed can install the Windows 10 May 2019 Update.&nbsp;For affected devices, the recommended version is <strong>15.9.8.1050</strong>.</div><div><br></div><div><strong>Affected platforms:</strong></div><ul><li>Client: Windows 10, version 1903</li><li>Server: Windows Server, version 1903</li></ul><div></div><div><strong>Resolution: </strong>This issue was resolved in <a href='https://support.microsoft.com/help/4512941' target='_blank'>KB4512941</a> and the safeguard hold has been removed. Please note, it can take up to 48 hours before you can update to Windows 10, version 1903.</div><br><a href ='#254msg'>Back to top</a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4512941' target='_blank'>KB4512941</a></td><td>Resolved:<br>August 30, 2019 <br>10:00 AM PT<br><br>Opened:<br>July 25, 2019 <br>06:10 PM PT</td></tr>

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text: "<div>This table offers a summary of current active issues and those issues that have been resolved in the last 30 days.</div><br>
<table border ='0'><tr><td width='65%'>Summary</td><td width='15%'>Originating update</td><td width='10%'>Status</td><td width='10%'>Last updated</td></tr>
<tr><td><div id='360msg'></div><b>Microsoft Defender Advanced Threat Protection might stop running</b><br>The Microsoft Defender ATP service might stop running and might fail to send reporting data.<br><br><a href = '#360msgdesc'>See details ></a></td><td>OS Build 17763.832<br><br>October 15, 2019<br><a href ='https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a></td><td>Investigating<br><a href = '' target='_blank'></a></td><td>October 17, 2019 <br>05:14 PM PT</td></tr>
<tr><td><div id='360msg'></div><b>Microsoft Defender Advanced Threat Protection might stop running</b><br>The Microsoft Defender ATP service might stop running and might fail to send reporting data.<br><br><a href = '#360msgdesc'>See details ></a></td><td>OS Build 17763.832<br><br>October 15, 2019<br><a href ='https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a></td><td>Investigating<br><a href = '' target='_blank'></a></td><td>October 18, 2019 <br>04:23 PM PT</td></tr>
<tr><td><div id='330msg'></div><b>Windows Mixed Reality Portal users may intermittently receive a 15-5 error code</b><br>You may receive a 15-5 error code in Windows Mixed Reality Portal and your headset may not wake up from sleep.<br><br><a href = '#330msgdesc'>See details ></a></td><td>OS Build 17763.678<br><br>August 13, 2019<br><a href ='https://support.microsoft.com/help/4511553' target='_blank'>KB4511553</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a></td><td>October 15, 2019 <br>10:00 AM PT</td></tr>
<tr><td><div id='244msg'></div><b>Startup to a black screen after installing updates</b><br>Your device may startup to a black screen during the first logon after installing updates.<br><br><a href = '#244msgdesc'>See details ></a></td><td>OS Build 17763.557<br><br>June 11, 2019<br><a href ='https://support.microsoft.com/help/4503327' target='_blank'>KB4503327</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a></td><td>October 15, 2019 <br>10:00 AM PT</td></tr>
<tr><td><div id='351msg'></div><b>Intermittent issues when printing</b><br>The print spooler service may intermittently have issues completing a print job and results print job failure.<br><br><a href = '#351msgdesc'>See details ></a></td><td>OS Build 17763.740<br><br>September 23, 2019<br><a href ='https://support.microsoft.com/help/4522015' target='_blank'>KB4522015</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4519338' target='_blank'>KB4519338</a></td><td>October 08, 2019 <br>10:00 AM PT</td></tr>
@ -87,7 +87,7 @@ sections:
- type: markdown
text: "
<table border ='0'><tr><td width='65%'>Details</td><td width='15%'>Originating update</td><td width='10%'>Status</td><td width='10%'>History</td></tr>
<tr><td style='border-left-width:1px;border-right-width:1px;border-bottom-width:1px;'><div id='360msgdesc'></div><b>Microsoft Defender Advanced Threat Protection might stop running</b><div>The Microsoft Defender Advanced Threat Protection (ATP) service might stop running and might fail to send reporting data. You might also receive a&nbsp;0xc0000409 error in <strong>Event Viewer</strong> on MsSense.exe.</div><div><br></div><div><strong>Affected platforms:</strong></div><ul><li>Client: Windows 10, version 1809; Windows 10 Enterprise LTSC 2019</li><li>Server: Windows Server, version 1809; Windows Server 2019</li></ul><div></div><div><strong>Next steps:</strong>&nbsp;At this time, we suggest that devices in an affected environment do not install <a href='https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a>. We are working on a resolution and estimate a solution will be available in mid-November.</div><br><a href ='#360msg'>Back to top</a></td><td>OS Build 17763.832<br><br>October 15, 2019<br><a href ='https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a></td><td>Investigating<br><a href = '' target='_blank'></a></td><td>Last updated:<br>October 17, 2019 <br>05:14 PM PT<br><br>Opened:<br>October 17, 2019 <br>05:14 PM PT</td></tr>
<tr><td style='border-left-width:1px;border-right-width:1px;border-bottom-width:1px;'><div id='360msgdesc'></div><b>Microsoft Defender Advanced Threat Protection might stop running</b><div>After installing the optional non-security&nbsp;update (<a href='https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a>), the Microsoft Defender Advanced Threat Protection (ATP) service might stop running and might fail to send reporting data. You might also receive a&nbsp;0xc0000409 error in <strong>Event Viewer</strong> on MsSense.exe.</div><div><br></div><div><strong>Note</strong> Microsoft Windows Defender Antivirus is not affected by this issue.</div><div><br></div><div><strong>Affected platforms:</strong></div><ul><li>Client: Windows 10, version 1809; Windows 10 Enterprise LTSC 2019</li><li>Server: Windows Server, version 1809; Windows Server 2019</li></ul><div></div><div><strong>Next steps:</strong>&nbsp;At this time, we suggest that devices in an affected environment do not install the optional non-security&nbsp;update, <a href='https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a>. We are working on a resolution and estimate a solution will be available in mid-November.</div><br><a href ='#360msg'>Back to top</a></td><td>OS Build 17763.832<br><br>October 15, 2019<br><a href ='https://support.microsoft.com/help/4520062' target='_blank'>KB4520062</a></td><td>Investigating<br><a href = '' target='_blank'></a></td><td>Last updated:<br>October 18, 2019 <br>04:23 PM PT<br><br>Opened:<br>October 17, 2019 <br>05:14 PM PT</td></tr>
</table>
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- type: markdown
text: "<div>This table offers a summary of current active issues and those issues that have been resolved in the last 30 days.</div><br>
<table border ='0'><tr><td width='65%'>Summary</td><td width='15%'>Originating update</td><td width='10%'>Status</td><td width='10%'>Last updated</td></tr>
<tr><td><div id='248msg'></div><b>dGPU occasionally disappear from device manager on Surface Book 2</b><br>Some apps or games may close or fail to open on Surface Book 2 devices with Nvidia dGPU.<br><br><a href = '#248msgdesc'>See details ></a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>October 11, 2019 <br>03:15 PM PT</td></tr>
<tr><td><div id='248msg'></div><b>dGPU occasionally disappear from device manager on Surface Book 2</b><br>Some apps or games may close or fail to open on Surface Book 2 devices with Nvidia dGPU.<br><br><a href = '#248msgdesc'>See details ></a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>October 18, 2019 <br>04:33 PM PT</td></tr>
<tr><td><div id='351msg'></div><b>Intermittent issues when printing</b><br>The print spooler service may intermittently have issues completing a print job and results print job failure.<br><br><a href = '#351msgdesc'>See details ></a></td><td>OS Build 18362.357<br><br>September 23, 2019<br><a href ='https://support.microsoft.com/help/4522016' target='_blank'>KB4522016</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4517389' target='_blank'>KB4517389</a></td><td>October 08, 2019 <br>10:00 AM PT</td></tr>
<tr><td><div id='335msg'></div><b>Audio in games is quiet or different than expected</b><br>Microsoft has received reports that audio in certain games is quieter or different than expected.<br><br><a href = '#335msgdesc'>See details ></a></td><td>OS Build 18362.356<br><br>September 10, 2019<br><a href ='https://support.microsoft.com/help/4515384' target='_blank'>KB4515384</a></td><td>Resolved<br><a href = 'https://support.microsoft.com/help/4517211' target='_blank'>KB4517211</a></td><td>September 26, 2019 <br>02:00 PM PT</td></tr>
<tr><td><div id='336msg'></div><b>IME may become unresponsive or have High CPU usage</b><br>Some Input Method Editor (IME) including ChsIME.EXE and ChtIME.EXE, may become unresponsive or may have high CPU usage.<br><br><a href = '#336msgdesc'>See details ></a></td><td>OS Build 18362.356<br><br>September 10, 2019<br><a href ='https://support.microsoft.com/help/4515384' target='_blank'>KB4515384</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>September 19, 2019 <br>04:08 PM PT</td></tr>
@ -113,7 +113,7 @@ sections:
- type: markdown
text: "
<table border ='0'><tr><td width='65%'>Details</td><td width='15%'>Originating update</td><td width='10%'>Status</td><td width='10%'>History</td></tr>
<tr><td style='border-left-width:1px;border-right-width:1px;border-bottom-width:1px;'><div id='248msgdesc'></div><b>dGPU occasionally disappear from device manager on Surface Book 2</b><div>Microsoft has identified a compatibility issue on some Surface Book 2 devices configured with Nvidia discrete graphics processing units (dGPUs). After updating to Windows 10, version 1903 (the May 2019 Update), some apps or games that needs to perform graphics intensive operations may close or fail to open.</div><div>&nbsp;</div><div>To safeguard your update experience, we have applied a compatibility hold on Surface Book 2 devices with Nvidia dGPU from being offered Windows 10, version 1903 until&nbsp;this issue is resolved.</div><div>&nbsp;</div><div><strong>Affected platforms:</strong></div><ul><li>Client: Windows 10, version 1903</li></ul><div></div><div><strong>Resolved:&nbsp;</strong>To resolve this issue, you will need to update the firmware of your Surface Book 2&nbsp;device. Please see the <a href=\"https://support.microsoft.com/help/4055398/surface-book-2-update-history\" target=\"_blank\">Surface Book 2 update history page</a><strong>&nbsp;</strong>for instructions on how to install the October 2019 updates on your device. There is no update for Windows needed for this issue.</div><div>&nbsp;</div><div>The safeguard hold will be removed in the coming weeks.</div><br><a href ='#248msg'>Back to top</a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>Resolved:<br>October 11, 2019 <br>03:15 PM PT<br><br>Opened:<br>July 12, 2019 <br>04:20 PM PT</td></tr>
<tr><td style='border-left-width:1px;border-right-width:1px;border-bottom-width:1px;'><div id='248msgdesc'></div><b>dGPU occasionally disappear from device manager on Surface Book 2</b><div>Microsoft has identified a compatibility issue on some Surface Book 2 devices configured with Nvidia discrete graphics processing units (dGPUs). After updating to Windows 10, version 1903 (the May 2019 Update), some apps or games that needs to perform graphics intensive operations may close or fail to open.</div><div>&nbsp;</div><div>To safeguard your update experience, we have applied a compatibility hold on Surface Book 2 devices with Nvidia dGPU from being offered Windows 10, version 1903 until&nbsp;this issue is resolved.</div><div>&nbsp;</div><div><strong>Affected platforms:</strong></div><ul><li>Client: Windows 10, version 1903</li></ul><div></div><div><strong>Resolved:&nbsp;</strong>To resolve this issue, you will need to update the firmware of your Surface Book 2&nbsp;device. Please see the <a href=\"https://support.microsoft.com/help/4055398/surface-book-2-update-history\" target=\"_blank\">Surface Book 2 update history page</a><strong>&nbsp;</strong>for instructions on how to install the October 2019 updates on your device. There is no update for Windows needed for this issue.</div><div>&nbsp;</div><div>The safeguard hold has been removed. Please note, it can take up to 48 hours before you can update to offered Windows 10, version 1903.</div><br><a href ='#248msg'>Back to top</a></td><td>OS Build 18362.145<br><br>May 29, 2019<br><a href ='https://support.microsoft.com/help/4497935' target='_blank'>KB4497935</a></td><td>Resolved<br><a href = '' target='_blank'></a></td><td>Resolved:<br>October 18, 2019 <br>04:33 PM PT<br><br>Opened:<br>July 12, 2019 <br>04:20 PM PT</td></tr>
</table>
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@ -33,7 +33,7 @@ Keeping your antivirus protection up to date is critical. There are two componen
This article describes the *where* - how to specify where updates should be downloaded from (this is also known as the fallback order). See [Manage Windows Defender Antivirus updates and apply baselines](manage-updates-baselines-windows-defender-antivirus.md) topic for an overview on how updates work, and how to configure other aspects of updates (such as scheduling updates).
> [!IMPORTANT]
> Microsoft Defender Antivirus Security intelligence updates are delivered through Windows Update and starting Monday October 21, 2019, all security intelligence updates will be SHA-2 signed exclusively. Your devices must be updated to support SHA-2 in order to update the security intelligence. To learn more, see [2019 SHA-2 Code Signing Support requirement for Windows and WSUS](https://support.microsoft.com/help/4472027/2019-sha-2-code-signing-support-requirement-for-windows-and-wsus).
> Microsoft Defender Antivirus Security intelligence updates are delivered through Windows Update and starting Monday, October 21, 2019, all security intelligence updates will be SHA-2 signed exclusively. Your devices must be updated to support SHA-2 in order to update your security intelligence. To learn more, see [2019 SHA-2 Code Signing Support requirement for Windows and WSUS](https://support.microsoft.com/help/4472027/2019-sha-2-code-signing-support-requirement-for-windows-and-wsus).
<a id="fallback-order"></a>
@ -43,7 +43,7 @@ This article describes the *where* - how to specify where updates should be down
Typically, you configure endpoints to individually download updates from a primary source, followed by other sources in order of priority, based on your network configuration. Updates are obtained from sources in the order you specify. If a source is not available, the next source in the list is used.
When updates are published, some logic is applied to minimize the size of the update. In most cases, only the differences between the latest update and the update that is currently installed (this is referred to as the delta) on the device is downloaded and applied. However, the size of the delta depends on two main factors:
- the age of the last update on the device; and
- The age of the last update on the device; and
- The source used to download and apply updates.
The older the updates on an endpoint, the larger the download will be. However, you must also consider download frequency as well. A more frequent update schedule can result in more network usage, whereas a less-frequent schedule can result in larger file sizes per download.
@ -54,12 +54,12 @@ There are five locations where you can specify where an endpoint should obtain u
- [Windows Server Update Service](https://docs.microsoft.com/windows-server/administration/windows-server-update-services/get-started/windows-server-update-services-wsus)
- [System Center Configuration Manager](https://docs.microsoft.com/sccm/core/servers/manage/updates)
- [Network file share](https://docs.microsoft.com/windows-server/storage/nfs/nfs-overview)
- [Security intelligence updates for Windows Defender Antivirus and other Microsoft antimalware](https://www.microsoft.com/en-us/wdsi/defenderupdates)
- [Security intelligence updates for Windows Defender Antivirus and other Microsoft antimalware](https://www.microsoft.com/en-us/wdsi/defenderupdates) (Your policy and registry might have this listed as Microsoft Malware Protection Center (MMPC) security intelligence, its former name.)
To ensure the best level of protection, Microsoft Update allows for rapid releases, which means smaller downloads on a frequent basis. The Windows Server Update Service, System Center Configuration Manager, and Microsoft security intelligence updates sources deliver less frequent updates. Thus, the delta can be larger, resulting in larger downloads.
> [!IMPORTANT]
> If you have set security intelligence updates as a fallback source after Windows Server Update Service or Microsoft Update, updates are only downloaded from security intelligence updates when the current update is considered out-of-date. (By default, this is 14 consecutive days of not being able to apply updates from the WSUS or Microsoft Update services).
> If you have set [Microsoft Malware Protection Center Security intelligence page](https://www.microsoft.com/security/portal/definitions/adl.aspx) (MMPC) updates as a fallback source after Windows Server Update Service or Microsoft Update, updates are only downloaded from security intelligence updates when the current update is considered out-of-date. (By default, this is 14 consecutive days of not being able to apply updates from the Windows Server Update Service or Microsoft Update services).
> You can, however, [set the number of days before protection is reported as out-of-date](https://docs.microsoft.com/windows/threat-protection/windows-defender-antivirus/manage-outdated-endpoints-windows-defender-antivirus#set-the-number-of-days-before-protection-is-reported-as-out-of-date).<p>
> Starting Monday, October 21, 2019, security intelligence updates will be SHA-2 signed exclusively. Devices must be updated to support SHA-2 in order to get the latest security intelligence updates. To learn more, see [2019 SHA-2 Code Signing Support requirement for Windows and WSUS](https://support.microsoft.com/help/4472027/2019-sha-2-code-signing-support-requirement-for-windows-and-wsus).
@ -71,7 +71,7 @@ Each source has typical scenarios that depend on how your network is configured,
|Microsoft Update | You want your endpoints to connect directly to Microsoft Update. This can be useful for endpoints that irregularly connect to your enterprise network, or if you do not use Windows Server Update Service to manage your updates.|
|File share | You have non-Internet-connected devices (such as VMs). You can use your Internet-connected VM host to download the updates to a network share, from which the VMs can obtain the updates. See the [VDI deployment guide](deployment-vdi-windows-defender-antivirus.md) for how file shares can be used in virtual desktop infrastructure (VDI) environments.|
|System Center Configuration Manager | You are using System Center Configuration Manager to update your endpoints.|
|Security intelligence updates for Windows Defender Antivirus and other Microsoft antimalware |[Make sure your devices are updated to support SHA-2](https://support.microsoft.com/help/4472027/2019-sha-2-code-signing-support-requirement-for-windows-and-wsus). Microsoft Defender Antivirus Security intelligence updates are delivered through Windows Update, and starting Monday October 21, 2019 security intelligence updates will be SHA-2 signed exclusively. <br/>Download the latest protection updates because of a recent infection or to help provision a strong, base image for [VDI deployment](deployment-vdi-windows-defender-antivirus.md). This option should generally be used only as a final fallback source, and not the primary source. It will only be used if updates cannot be downloaded from Windows Server Update Service or Microsoft Update for [a specified number of days](https://docs.microsoft.com/windows/threat-protection/windows-defender-antivirus/manage-outdated-endpoints-windows-defender-antivirus#set-the-number-of-days-before-protection-is-reported-as-out-of-date).|
|Security intelligence updates for Windows Defender Antivirus and other Microsoft antimalware (formerly referred to as MMPC) |[Make sure your devices are updated to support SHA-2](https://support.microsoft.com/help/4472027/2019-sha-2-code-signing-support-requirement-for-windows-and-wsus). Microsoft Defender Antivirus Security intelligence updates are delivered through Windows Update, and starting Monday October 21, 2019 security intelligence updates will be SHA-2 signed exclusively. <br/>Download the latest protection updates because of a recent infection or to help provision a strong, base image for [VDI deployment](deployment-vdi-windows-defender-antivirus.md). This option should generally be used only as a final fallback source, and not the primary source. It will only be used if updates cannot be downloaded from Windows Server Update Service or Microsoft Update for [a specified number of days](https://docs.microsoft.com/windows/threat-protection/windows-defender-antivirus/manage-outdated-endpoints-windows-defender-antivirus#set-the-number-of-days-before-protection-is-reported-as-out-of-date).|
You can manage the order in which update sources are used with Group Policy, System Center Configuration Manager, PowerShell cmdlets, and WMI.