Microsoft Windows Server | WI613622

Impact: 32-bit apps from Microsoft or third-parties might fail to open with certain security software installed. Originating KB URL: https://support.microsoft.com/en-us/topic/5027215 Originating KB Release Date: 2023-06-13T10:00:00-07:00 Originating Build: 19044.3086 Resolved KB URL: N/A Date Resolved: 2023-06-28T17:14:15.4903103-07:00 Vendor Message History: ======================= Published: 2023-06-29T00:35:18.777+00:00 ---------------------------------------- After installing KB5027215 (https://support.microsoft.com/help/5027215) or later updates on Windows devices with certain antivirus, antimalware or security software installed, you might not be able to open Microsoft or third-party apps. Some known affected apps are Microsoft Outlook and other Microsoft Office apps. This issue only occurs with 32-bit apps running on 64-bit Windows with Trellix Endpoint Security version earlier than 35.31.25. When attempting to open an affected app, Event Log indicates an access violation with the error "module is unknown". This issue is not likely to be encountered by consumers using Windows devices in their home. Resolution: This issue has been resolved by Trellix in Endpoint Security Agent (HX) 35.31.25 (https://docs.trellix.com/bundle/xagent_35-31-25/page/UUID-10a24e72-8892-afe8-542c-72d094911cec.html) and later. If you are experiencing this issue with other security software installed or after installing the latest version of Trellix Endpoint Security Agent, please contact customer support of the security software you are using. Affected platforms: - Client: Windows 11, version 22H2; Windows 10, version 22H2; Windows 11, version 21H2; Windows 10, version 21H2 - Server: Windows Server 2022