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Submitted URL: https://email.evolveip.net/e3t/Ctc/UB+113/d2qXnG04/VWKSkZ7slQkhW8FX2X75SyFylW7MhRLh58TP4LN31NNCl5nR32W7Y9pgv6lZ3mlW5K7nf27t...
Effective URL: https://support.microsoft.com/en-au/topic/kb5034441-windows-recovery-environment-update-for-windows-10-version-21h2-and-22h2-j...
Submission: On March 20 via api from US — Scanned from DE

Form analysis 3 forms found in the DOM

Name: searchForm — GET /en-au/Search/results

<form class="c-search" autocomplete="off" id="searchForm" name="searchForm" role="search" action="/en-au/Search/results" method="GET"
  data-seautosuggest="{&quot;queryParams&quot;:{&quot;market&quot;:&quot;en-au&quot;,&quot;clientId&quot;:&quot;7F27B536-CF6B-4C65-8638-A0F8CBDFCA65&quot;,&quot;sources&quot;:&quot;Microsoft-Terms,Iris-Products,DCatAll-Products&quot;,&quot;filter&quot;:&quot;+ClientType:StoreWeb&quot;,&quot;counts&quot;:&quot;5,1,5&quot;},&quot;familyNames&quot;:{&quot;Apps&quot;:&quot;App&quot;,&quot;Books&quot;:&quot;Book&quot;,&quot;Bundles&quot;:&quot;Bundle&quot;,&quot;Devices&quot;:&quot;Device&quot;,&quot;Fees&quot;:&quot;Fee&quot;,&quot;Games&quot;:&quot;Game&quot;,&quot;MusicAlbums&quot;:&quot;Album&quot;,&quot;MusicTracks&quot;:&quot;Song&quot;,&quot;MusicVideos&quot;:&quot;Video&quot;,&quot;MusicArtists&quot;:&quot;Artist&quot;,&quot;OperatingSystem&quot;:&quot;Operating System&quot;,&quot;Software&quot;:&quot;Software&quot;,&quot;Movies&quot;:&quot;Movie&quot;,&quot;TV&quot;:&quot;TV&quot;,&quot;CSV&quot;:&quot;Gift Card&quot;,&quot;VideoActor&quot;:&quot;Actor&quot;}}"
  data-seautosuggestapi="https://www.microsoft.com/msstoreapiprod/api/autosuggest"
  data-m="{&quot;cN&quot;:&quot;GlobalNav_Search_cont&quot;,&quot;cT&quot;:&quot;Container&quot;,&quot;id&quot;:&quot;c3c1c9c3m1r1a1&quot;,&quot;sN&quot;:3,&quot;aN&quot;:&quot;c1c9c3m1r1a1&quot;}" aria-expanded="false" style="overflow-x: visible;">
  <div class="x-screen-reader" aria-live="assertive"></div>
  <input id="cli_shellHeaderSearchInput" aria-label="Search Expanded" aria-autocomplete="list" aria-expanded="false" aria-controls="universal-header-search-auto-suggest-transparent" aria-owns="universal-header-search-auto-suggest-ul" type="search"
    name="query" role="combobox" placeholder="Search for help" data-m="{&quot;cN&quot;:&quot;SearchBox_nav&quot;,&quot;id&quot;:&quot;n1c3c1c9c3m1r1a1&quot;,&quot;sN&quot;:1,&quot;aN&quot;:&quot;c3c1c9c3m1r1a1&quot;}" data-toggle="tooltip"
    data-placement="right" title="Search for help" style="overflow-x: visible;">
  <button id="search" aria-label="Search for help" class="c-glyph" data-m="{&quot;cN&quot;:&quot;Search_nav&quot;,&quot;id&quot;:&quot;n2c3c1c9c3m1r1a1&quot;,&quot;sN&quot;:2,&quot;aN&quot;:&quot;c3c1c9c3m1r1a1&quot;}" data-bi-mto="true"
    aria-expanded="false" style="overflow-x: visible;">
    <span role="presentation" style="overflow-x: visible;">Search</span>
    <span role="tooltip" class="c-uhf-tooltip c-uhf-search-tooltip" style="overflow-x: visible;">Search for help</span>
  </button>
  <div class="m-auto-suggest" id="universal-header-search-auto-suggest-transparent" role="group" style="overflow-x: visible;">
    <ul class="c-menu" id="universal-header-search-auto-suggest-ul" aria-label="Search Suggestions" aria-hidden="true" data-bi-dnt="true" data-bi-mto="true" data-js-auto-suggest-position="default" role="listbox" data-tel="jsll"
      data-m="{&quot;cN&quot;:&quot;search suggestions_cont&quot;,&quot;cT&quot;:&quot;Container&quot;,&quot;id&quot;:&quot;c3c3c1c9c3m1r1a1&quot;,&quot;sN&quot;:3,&quot;aN&quot;:&quot;c3c1c9c3m1r1a1&quot;}" style="overflow-x: visible;"></ul>
    <ul class="c-menu f-auto-suggest-no-results" aria-hidden="true" data-js-auto-suggest-postion="default" data-js-auto-suggest-position="default" role="listbox" style="overflow-x: visible;">
      <li class="c-menu-item" style="overflow-x: visible;"> <span tabindex="-1" style="overflow-x: visible;">No results</span></li>
    </ul>
  </div>
</form>

GET /en-AU/search/results

<form class="searchBoxForm" method="GET" action="/en-AU/search/results" autocomplete="off" role="search"><input class="searchBoxInput" name="query" type="search" maxlength="100" placeholder="How can we help you?" aria-label="How can we help you?"
    role="combobox" aria-autocomplete="list" aria-haspopup="listbox" aria-expanded="false" value=""><input type="hidden" name="isEnrichedQuery" value="false"><button class="searchBoxButton" id="searchsubmit" type="submit" title="Search"><span
      class="searchBoxIconContainer"><i class="searchBoxIcon icon-mdl2 icon-forward"></i></span></button></form>

Name: smartFeedbackForm — javascript:void(0);

<form action="javascript:void(0);" id="extendedFeedbackForm" name="smartFeedbackForm" class="smartFeedbackForm supStickyFeedbackMarginBottom">
  <div class="ocSmartFeedbackBegin extendedFeedbackArticleInfoUseful" role="region" aria-label="Provide feedback about this article">
    <h2 id="beginFeedbackHeader" class="boldFont extendedFeedbackHeader">Was this information helpful?</h2>
    <div class="feedbackButtons" role="group" aria-labelledby="beginFeedbackHeader">
      <button class="ocFeedbackButton supStickyFeedbackButton feedbackSelection feedbackButtonBlue" name="buttonYes" type="button" data-bi-id="buttonYes" data-bi-mto="">Yes</button>
      <button class="ocFeedbackButton supStickyFeedbackButton feedbackSelection feedbackButtonBlue" name="buttonNo" type="button" data-bi-id="buttonNo" data-bi-mto="">No</button>
    </div>
  </div>
  <div id="extendedFeedback" class="ocSmartFeedbackReply ocHidden">
    <div id="extendedFeedbackHeader" class="supStickyFeedbackHeader">
      <label for="feedbackText" class="ocFeedbackHeaderIfArticleHelpful ocHidden">
        <span class="boldFont" aria-hidden="true">Thank you! Any more feedback for Microsoft?</span>
      </label>
      <label for="feedbackText" class="ocFeedbackHeaderIfArticleNotHelpful ocHidden">
        <span class="boldFont" aria-hidden="true">Can you help us improve?</span> (Send feedback to Microsoft so we can help.) </label>
    </div>
    <fieldset id="extendedFeedbackArticleExperience" class="feedbackGroup">
      <legend class="extendedFeedbackQuestionLabels">What affected your experience?</legend>
      <div class="ocFeedbackHeaderIfArticleHelpful ocHidden">
        <div id="articleExperience_helpful_0">
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="helpful_0" name="helpful_0" value="Resolved my issue" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Resolved my issue"></span>
              <span class="experienceOptionLabels">Resolved my issue</span>
            </label>
          </div>
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="helpful_1" name="helpful_1" value="Clear instructions" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Clear instructions"></span>
              <span class="experienceOptionLabels">Clear instructions</span>
            </label>
          </div>
        </div>
        <div id="articleExperience_helpful_1">
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="helpful_2" name="helpful_2" value="Easy to follow" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Easy to follow"></span>
              <span class="experienceOptionLabels">Easy to follow</span>
            </label>
          </div>
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="helpful_3" name="helpful_3" value="No jargon" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="No jargon"></span>
              <span class="experienceOptionLabels">No jargon</span>
            </label>
          </div>
        </div>
        <div id="articleExperience_helpful_2">
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="helpful_4" name="helpful_4" value="Pictures helped" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Pictures helped"></span>
              <span class="experienceOptionLabels">Pictures helped</span>
            </label>
          </div>
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="helpful_5" name="helpful_5" value="Other" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Other"></span>
              <span class="experienceOptionLabels">Other</span>
            </label>
          </div>
        </div>
      </div>
      <div class="ocFeedbackHeaderIfArticleNotHelpful ocHidden">
        <div id="articleExperience_notHelpful_0">
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="notHelpful_0" name="notHelpful_0" value="Didn't match my screen" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Didn't match my screen"></span>
              <span class="experienceOptionLabels">Didn't match my screen</span>
            </label>
          </div>
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="notHelpful_1" name="notHelpful_1" value="Incorrect instructions" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Incorrect instructions"></span>
              <span class="experienceOptionLabels">Incorrect instructions</span>
            </label>
          </div>
        </div>
        <div id="articleExperience_notHelpful_1">
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="notHelpful_2" name="notHelpful_2" value="Too technical" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Too technical"></span>
              <span class="experienceOptionLabels">Too technical</span>
            </label>
          </div>
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="notHelpful_3" name="notHelpful_3" value="Not enough information" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Not enough information"></span>
              <span class="experienceOptionLabels">Not enough information</span>
            </label>
          </div>
        </div>
        <div id="articleExperience_notHelpful_2">
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="notHelpful_4" name="notHelpful_4" value="Not enough pictures" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Not enough pictures"></span>
              <span class="experienceOptionLabels">Not enough pictures</span>
            </label>
          </div>
          <div class="experienceOption">
            <label class="articleExperienceOptionsLabels">
              <input class="articleExperienceOptionsCheckbox" type="checkbox" tabindex="-1" id="notHelpful_5" name="notHelpful_5" value="Other" data-bi-dnt="">
              <span class="checkboxTick" tabindex="0" role="checkbox" aria-label="Other"></span>
              <span class="experienceOptionLabels">Other</span>
            </label>
          </div>
        </div>
      </div>
    </fieldset>
    <div id="extendedFeedbackVerbatim" class="verbatimFeedback feedbackGroup">
      <label for="verbatimFeedbackInput" class="extendedFeedbackQuestionLabels">Any additional feedback? (Optional)</label>
      <textarea id="verbatimFeedbackInput" class="ocSmartFeedbackTextArea" name="feedbackText" rows="6" cols="40" maxlength="250"
        placeholder="To protect your privacy, do not provide any personal information such as email address, phone number, product key, password, or credit card number."></textarea>
    </div>
    <div id="extendedFeedbackFormSubmit" class="feedbackButtons">
      <button id="buttonFeedbackVerbatimSubmit" class="ocFeedbackButton supStickyFeedbackButton ocButtonSendComment feedbackButtonBlue" type="submit" data-bi-id="buttonFeedbackVerbatimSubmit" data-bi-mto="" disabled="">Submit feedback</button>
    </div>
    <div id="privacyStatement">
      <span>By pressing submit, your feedback will be used to improve Microsoft products and services.</span>
      <a id="privacyLink" href="https://privacy.microsoft.com/en-US/privacystatement"><span>Privacy Statement.</span></a>
    </div>
  </div>
</form>

Text Content

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KB5034441: WINDOWS RECOVERY ENVIRONMENT UPDATE FOR WINDOWS 10, VERSION 21H2 AND
22H2: JANUARY 9, 2024

Windows 10 Home and Pro, version 21H2 Windows 10 Enterprise and Education,
version 21H2 Windows 10 IoT Enterprise, version 21H2 Windows 10 Home and Pro,
version 22H2 Windows 10 Enterprise Multi-Session, version 22H2 Windows 10
Enterprise and Education, version 22H2 Windows 10 IoT Enterprise, version 22H2
More...Less

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SUMMARY

This update automatically applies Safe OS Dynamic Update (KB5034232) to the
Windows Recovery Environment (WinRE) on a running PC to address a security
vulnerability that could allow attackers to bypass BitLocker encryption by using
WinRE. For more information, see CVE-2024-20666.

NOTE If your running PC does not have a WinRE recovery partition, you do not
need this update. To verify if you have WinRE enabled, you can run the following
command in an elevated command prompt: reagentc /info

If WinRE is enabled you will see Windows RE status in the output with a value of
Enabled.

IMPORTANT

This update requires 250 MB of free space in the recovery partition to install
successfully. If the recovery partition does not have sufficient free space,
this update will fail. In this case, you will receive the following error
message: 

0x80070643 - ERROR_INSTALL_FAILURE 

To avoid this error or recover from this failure, please follow the Instructions
to manually resize your partition to install the WinRE update and then try
installing this update.

Or, to use a sample script to increase the size of the WinRE recovery partition,
see Extend the Windows RE Partition.


HOW TO GET THIS UPDATE

This update is available through the following release channels.

Release Channel

Available

Windows Update

Yes

Microsoft Update Catalog

No

Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration
Manager

No

Prerequisites 

The PC must have 250 MB of free space in the recovery partition to apply this
update successfully.

Restart information 

You do not need to restart your device after applying this update.

Verify the installation of this update

To verify the installation of this update, use DISM /Get-Packages to ensure Safe
OS Dynamic Update package is present on WinRE. For more information, see Check
the WinRE image version.

Removal information

This update cannot be removed once it is applied to a Windows image.

Update replacement information 

This update does not replace any previously released update.


REFERENCES

Learn about the standard terminology that is used to describe Microsoft software
updates.


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WAS THIS INFORMATION HELPFUL?

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Thank you! Any more feedback for Microsoft? Can you help us improve? (Send
feedback to Microsoft so we can help.)
What affected your experience?
Resolved my issue
Clear instructions
Easy to follow
No jargon
Pictures helped
Other
Didn't match my screen
Incorrect instructions
Too technical
Not enough information
Not enough pictures
Other
Any additional feedback? (Optional)
Submit feedback
By pressing submit, your feedback will be used to improve Microsoft products and
services. Privacy Statement.


THANK YOU FOR YOUR FEEDBACK!

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