Offline security patches for office 2019

Hi @Alagumuthu Melur dhandapani

Welcome to Q&A forum ~

For Click-To-Run version Office, we could not download the the separate security update patches to install.

Can you find a machine at least with internet access?

If possible, I will update this reply later and I would show details that using this computer to download the whole Office installation package via ODT to a shared folder on the local area network, the end users compare files from the update source, check the differences, and download the related files to install.

If not, I don't think your needs could be achieved. Thanks for your understanding.

Any updates, you could let me know.

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Update ------------

Following content is about using ODT download and deploy updates for Office 2019 Professional Plus.

• First, you need to enable some settings for installed Office.
  On my test environment, I installed an older version Office 2019 via following .xml file. <Configuration>
  <Add SourcePath="C:\test"
  OfficeClientEdition="64"
  Version="16.0.103XX.20XXX" >
  <Product ID="ProPlus2019Volume">
  <Language ID="en-us" />
  </Product>
  </Add>
  <Updates UpdatePath="C:\test" />
  </Configuration>

Among the .xml file, SourcePath="C:\test" is used to specific the source file location when using ODT tool install an Office or an updated one.
<Updates UpdatePath="C:\test" /> is used to specify the update source location which is used for Office automatic updates.
"C:\test" could be replaced with your network shared folder, such as "\\server\share".

• Then I prepare the following .xml file (UDS.xml) based on my installed Office (product, language, 64-bit) to download the installation file. <Configuration>
  <Add SourcePath="C:\test"
  OfficeClientEdition="64" >
  <Product ID="ProPlus2019Volume">
  <Language ID="en-us" />
  </Product>
  </Add>
  <Updates UpdatePath="C:\test" />
  </Configuration>

You can create a .xml file according to your Office installation.
"Version" is not used here to qualify the version number, which means it defaults to the latest version available from CDN.

• Next, run cmd command to download the installation file.
  cd <The Location of ODT setup.exe>
  configure / <.xml file name>
  There would be an Office folder created under SourcePath("C:\test" on my sample.)
  
• To apply updates, run ODT with following .xml file (UT.xml). <Configuration>
  <Add SourcePath="C:\test" Version="16.0.10382.20010">
  <Product ID="ProPlus2019Volume">
  <Language ID="en-us" />
  </Product>
  </Add>
  </Configuration>

The reference is 'Update Microsoft 365 Apps', 'SourcePath attribute (part of Add element)', 'UpdatePath attribute (part of Updates element)`, 'Version attribute (part of Add element)'.

Any issues you could post back.

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