April 'Patch Tuesday' updates for Windows 10 Fall Creators Update now rolling out

Microsoft Surface Book 2
Microsoft Surface Book 2 (Image credit: Windows Central)

Microsoft's latest batch of monthly Patch Tuesday updates are now rolling out for Windows 10 PCs. As with previous Patch Tuesday releases, this month's batch includes a number of security improvements and bug fixes. There are no new features to speak of, but those with AMD processors will receive a pretty important security fix that mitigates the Spectre variant 2 flaw.

This month's update is rolling out to the Fall Creators Update as KB4093112 and build number 16299.371. Here's a look at all of what's been fixed:

  • Provides support to control usage of Indirect Branch Prediction Barrier (IBPB) within some AMD processors (CPUs) for mitigating CVE-2017-5715, Spectre Variant 2 when switching from user context to kernel context (See AMD Architecture Guidelines around Indirect Branch Control and AMD Security Updates for more details). Follow instructions outlined in KB4073119 for Windows Client (IT Pro) guidance to enable usage of IBPB within some AMD processors (CPUs) for mitigating Spectre Variant 2 when switching from user context to kernel context.
  • Addresses an issue that causes an access violation in Internet Explorer when it runs on the Microsoft Application Virtualization platform.
  • Addresses an issue in Enterprise Mode related to redirects in Internet Explorer and Microsoft Edge.
  • Addresses an issue that generates an access violation on certain pages in Internet Explorer when it renders SVGs under a high load.
  • Addresses additional issues with updated time zone information.
  • Addresses an issue that might cause the App-V service to stop working on an RDS server that hosts many users.
  • Addresses an issue where user accounts are locked when applications are moved to a shared platform using App-V (e.g., XenApp 7.15+ with Windows Server 2016, where Kerberos authentication isn't available).
  • Addresses an issue with printing content generated by ActiveX in Internet Explorer.
  • Addresses an issue that causes document.execCommand("copy") to always return False in Internet Explorer.
  • Addresses an issue that, in some instances, prevents Internet Explorer from identifying custom controls.
  • Security updates to Internet Explorer, Microsoft Edge, Windows kpp platform and frameworks, Microsoft scripting engine, Windows graphics, Windows Server, Windows kernel, Windows datacenter networking, Windows wireless networking, Windows virtualization and Kernel, and Windows Hyper-V.

Patch Tuesday updates are also rolling out to other currently supported versions of Windows, including older Windows 10 releases and Windows 10 Mobile, as well. For more, check out the release notes at Microsoft's support site. Otherwise, you can download the latest cumulative updates via Window Update now.

Dan Thorp-Lancaster

Dan Thorp-Lancaster is the former Editor-in-Chief of Windows Central. He began working with Windows Central, Android Central, and iMore as a news writer in 2014 and is obsessed with tech of all sorts. You can follow Dan on Twitter @DthorpL and Instagram @heyitsdtl