Patch Tuesday: Here's what's new for Windows 7 and Windows 8.1

Today is Patch Tuesday, the second Tuesday of the month, when Microsoft releases updates for all supported versions of Windows. Along with cumulative updates for all versions of Windows 10, there are also "monthly rollups" for older versions of the OS.

Those on Windows 7 SP1 and Windows Server 2008 R2 SP1 will see KB4093118, and that can be manually downloaded here. It contains the following fixes:

  • Windows Update and WSUS will offer this update to applicable Windows client and server operating systems regardless of the existence or value of the "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat\cadca5fe-87d3-4b96-b7fb-a231484277cc" registry setting. This change has been made to protect user data.

  • Improves reliability in the kernel, and addresses an issue that can cause applications to have unexpected memory contents on multiprocessor systems.

  • Addresses an issue with printing content generated by ActiveX in Internet Explorer.

  • Addresses an access violation on certain pages in Internet Explorer when it renders SVGs under high load.

  • Addresses an issue that, in some instances, prevents Internet Explorer from identifying custom controls.

  • Addresses a stop error that occurred when the previous month’s update was applied to a 32-bit (x86) computer with a Physical Address Extension (PAE) mode disabled.

  • Security updates to Internet Explorer, Microsoft scripting engine, Microsoft graphics component, Windows Server, Windows datacenter networking, Windows virtualization and kernel, and Windows app platform and frameworks.

It also contains the following known issues:

Symptom Workaround
After you install this update, SMB servers may leak memory. Microsoft is working on a resolution and will provide an update in an upcoming release.
A stop error occurs on computers that don't support Streaming Single Instructions Multiple Data (SIMD) Extensions 2 (SSE2). Microsoft is working on a resolution and will provide an update in an upcoming release.


There's also a security-only patch that can be manually installed instead of the one above. That's KB4093108, and it can be manually downloaded here. It also contains the same pair of known issues.

If you're on Windows 8.1 or Windows Server 2012 R2, you'll see the KB4093114, which you can manually download here. It contains the following fixes:

  • Windows Update and WSUS will offer this update to applicable Windows client and server operating systems regardless of the existence or value of the "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat\cadca5fe-87d3-4b96-b7fb-a231484277cc" registry setting. This change has been made to protect user data.

  • Addresses an issue with printing content generated by ActiveX in Internet Explorer.

  • Addresses an access violation on certain pages in Internet Explorer when it's rendering SVGs under high load.

  • Addresses an issue that, in some instances, prevents Internet Explorer from identifying custom controls.

  • Security updates to Internet Explorer, Microsoft scripting engine, Microsoft graphics component, Windows Server, Windows kernel, Windows datacenter networking, Windows Hyper-V, Windows virtualization and kernel, and Windows app platform and frameworks.

There are no known issues in this update, and the security-only update is KB4093115, which can be manually downloaded here.

Finally, Windows Server 2012 users will see the KB4093123 monthly rollup. You can manually download the update here, and it contains the following fixes:

  • Windows Update and WSUS will offer this update to applicable Windows client and server operating systems regardless of the existence or value of the "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat\cadca5fe-87d3-4b96-b7fb-a231484277cc" registry setting. This change has been made to protect user data.

  • Addresses an issue that, in some instances, prevents Internet Explorer from identifying custom controls.

  • Security updates to Microsoft scripting engine, Internet Explorer, Microsoft graphics component, Windows Server, Windows kernel, Windows datacenter networking, and Windows app platform and frameworks.

KB4093122 is the security-only update for Windows Server 2012, and that can be manually downloaded here. The client version of Windows that would coincide with Server 2012 is Windows 8, but that's not supported anymore, since Microsoft moved to Windows 8.1.

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