Microsoft Update Testing

Anonymous user · ‎2021-06-09

It is important to apply Microsoft Windows updates to keep systems secure. Occasionally there will be incompatibility issues noted here. Please check back regularly for updates.

Introduction

Microsoft provides the Windows Update Service that securely distributes updates and bug fixes in the form of patches. Microsoft schedules the release of patches via Windows Update.

To provide customers the confidence that they can install Microsoft patches without adversely affecting existing installations of Geo SCADA Expert, a set of regression tests are run on currently supported Geo SCADA Expert versions and their supported server and workstation Microsoft Windows Operating System versions. These regression tests are run on the newly-released Windows patches monthly, with the results published on this page for reference once they are released.

The results documentation is cumulative, meaning that the results from the current month's testing are added to the results of the previous month, and so forth. As a result it is only necessary to review the current month's results spreadsheet to get a comprehensive understanding of the testing performed in the current calendar year. Testing results are archived annually, with previous years' results available below for reference.

Any testing is performed using all the approved previous months of patches installed, except where a more recent patch supersedes that earlier patch.

Any out-of-band (unscheduled) patch released by Microsoft is not tested until the next scheduled patches are released, at which point the out-of-band patch will be tested alongside the scheduled patches.

Microsoft Windows Server, Workstation, .NET and general updates are tested including default services such as Windows Defender. Any other Microsoft products such as Microsoft Office are not included within the approval testing.

Third party patches such as those provided by SAP (Crystal Reports Editor), Oracle (Java) and Adobe (Reader) are not included within the testing.

Latest Test Results (Excel Format)

Scroll to the bottom to select the latest spreadsheet. The latest Patch Tests were carried out in June 2026 with the results available for download below.

It is anticipated that the results of the next round of Microsoft patch testing will be published here after July 28th 2026.

Schneider Electric recommends that this released patch information is used alongside a suitable patch management process, for example as documented in IEC-62443-2-3, which includes additional local testing using customer specific configuration prior to deployment to any production system.

IIS Web Server and Virtual ViewX Security

Virtual ViewX and the Reverse Proxy for WebX and Web Services are configured by a combination of settings in the Virtual ViewX area and Internet Information Server (IIS). Refer to this Virtual ViewX page for further details. The following items are recommended for all systems.

Disable Legacy TLS within the IIS Web Server
Enable HSTS Within the IIS Web Server
Customize the Virtual ViewX Web Headers
Disable Autocomplete for the Login form
Make cookies secure through IIS Rewrite

Resolved Issues (Newest First)

None.

Non-recent items prior to 2024 have been archived.

Please refer to the page Microsoft Update Testing - Archive.

Archived Test Results

Test results are archived annually. The previous results are available below. Generally use the latest file which rolls up previous months. Annual files are listed too. The December 2023 file includes test results from 2022, 2021 & 2020.

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