April 25, 2019—KB4493443 (Preview of Monthly Rollup)

Symptom

Workaround

After installing this update, there may be issues using the Preboot Execution Environment (PXE) to start a device from a Windows Deployment Services (WDS) server configured to use Variable Window Extension. This may cause the connection to the WDS server to terminate prematurely while downloading the image. This issue does not affect clients or devices that are not using Variable Window Extension.

This issue is resolved in KB4503276.

Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.

Do one of the following:

• Perform the operation from a process that has administrator privilege.

• Perform the operation from a node that doesn’t have CSV ownership.

Microsoft is working on a resolution and will provide an update in an upcoming release.

Microsoft and Sophos have identified an issue on devices with Sophos Endpoint Protection installed and managed by either Sophos Central or Sophos Enterprise Console (SEC) that may cause the system to become unresponsive upon restart after installing this update.

This issue has been resolved. Microsoft has removed the temporary block for all affected Windows updates.

Guidance for Sophos Endpoint and Sophos Enterprise Console customers can be found in the Sophos support article

Microsoft and Avira have identified an issue on devices with Avira antivirus software installed that may cause the system to become unresponsive upon restart after installing this update.

This issue has been resolved. Microsoft has removed the temporary block for all affected Windows updates.

Avira has released an automatic update to address this issue. Guidance for Avira customers can be found in the Avira support article.

Microsoft and ArcaBit have identified an issue on devices with ArcaBit antivirus software installed that may cause the system to become unresponsive upon restart after installing this update.

This issue has been resolved. Microsoft has removed the temporary block for all affected Windows updates.

ArcaBit has released an update to address this issue. For more information, see the Arcabit support article.

Microsoft and Avast have identified an issue on devices running Avast for Business, Avast CloudCare, and AVG Business Edition antivirus software after you install this update and restart. Devices may become unresponsive at the login or Welcome screen. Additionally, you may be unable to log in or log in after an extended period of time.

This issue has been resolved. Avast has released emergency updates to address this issue. For more information and AV update schedule, see the Avast support KB article.

Microsoft and McAfee have identified an issue on devices with McAfee Endpoint Security (ENS) Threat Prevention 10.x or McAfee Host Intrusion Prevention (Host IPS) 8.0 or McAfee VirusScan Enterprise (VSE) 8.8 installed. It may cause the system to have slow startup or become unresponsive at restart after installing this update.

This issue has been resolved. McAfee has released an automatic update to address this issue.

Guidance for McAfee customers can be found in the following McAfee support articles:

• McAfee Security (ENS) Threat Prevention 10.x

• McAfee Host Intrusion Prevention (Host IPS) 8.0

• McAfee VirusScan Enterprise (VSE) 8.8

When using the MS UI Gothic or MS PGothic fonts, the text, layout, or cell size may become narrower or wider than expected in Microsoft Excel. For example, the layout and cell size of Microsoft Excel sheets may change when using MS UI Gothic.

This issue is resolved in KB4499151.

If previous dictionary updates are installed, the Japanese input method editor (IME) doesn't show the new Japanese Era name as a text input option.

If you see any of the previous dictionary updates listed below, uninstall it from Programs and features > Uninstall or change a program. New words that were in previous dictionary updates are also in this update.

• Update for Japanese Microsoft IME Standard Dictionary (15.0.2013)

• Update for Japanese Microsoft IME Standard Extended Dictionary (15.0.2013)

• Update for Japanese Microsoft IME Standard Dictionary (15.0.1215)

• Update for Japanese Microsoft IME Standard Extended Dictionary (15.0.1215)

• Update for Japanese Microsoft IME Standard Dictionary (15.0.1080)

• Update for Japanese Microsoft IME Standard Extended Dictionary (15.0.1080)