October 13, 2020 - KB4580387 (Security-only update)
Applies to: Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1, Windows Embedded Standard 7 Service Pack 1, Windows Embedded POSReady 7, Windows Thin PC
NEW
IMPORTANT Release notes are changing! To learn about the new URL, metadata updates, and more, see What’s next for Windows release notes.
IMPORTANT Starting in July 2020, all Windows Updates will disable the RemoteFX vGPU feature because of a security vulnerability. For more information about the vulnerability, see CVE-2020-1036 and KB4570006. After you install this update, attempts to start virtual machines (VM) that have RemoteFX vGPU enabled will fail, and messages such as the following will appear:
If you re-enable RemoteFX vGPU, a message similar to the following will appear:
- “The virtual machine cannot be started because all the RemoteFX-capable GPUs are disabled in Hyper-V Manager.”
- “The virtual machine cannot be started because the server has insufficient GPU resources.”
IMPORTANT Verify that you have installed the required updates listed in the How to get this update section before installing this update.
- "We no longer support the RemoteFX 3D video adapter. If you are still using this adapter, you may become vulnerable to security risk. Learn more (Microsoft - Official Home Page
IMPORTANT Some customers who use Windows Server 2008 R2 SP1 and have activated their ESU multiple activation key (MAK) add-on before installing the January 14, 2020 updates might need to re-activate their key. Re-activation on the affected devices should only be required once. For information on activation, see this blog post.
IMPORTANT WSUS scan cab files will continue to be available for Windows 7 SP1 and Windows Server 2008 R2 SP1. If you have a subset of devices running these operating systems without ESU, they might show as non-compliant in your patch management and compliance toolsets.
IMPORTANT Customers who have purchased the Extended Security Update (ESU) for on-premises versions of these operating systems must follow the procedures in KB4522133 to continue receiving security updates after extended support ends on January 14, 2020. For more information on ESU and which editions are supported, see KB4497181.
IMPORTANT Starting on January 15, 2020, a full-screen notification will appear that describes the risk of continuing to use Windows 7 Service Pack 1 after it reaches end of support on January 14, 2020. The notification will remain on the screen until you interact with it. This notification will only appear on the following editions of Windows 7 Service Pack 1:
Note The notification will not appear on domain-joined machines or machines in kiosk mode.
- Starter.
- Home Basic.
- Home Premium.
- Professional. If you have purchased the Extended Security Update (ESU), the notification will not appear. For more information, see How to get Extended Security Updates for eligible Windows devices and Lifecycle FAQ-Extended Security Updates.
- Ultimate.
Improvements and fixes
This security update includes improvements and fixes that were a part of update KB4577051 (released September 8, 2020) and addresses the following issues:
For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.
- Addresses an issue that might cause the Graphics Device Interface (GDI) to access internal regions incorrectly causing unexpected UI experiences. This issue can cause additional or missing screen elements, screen flickering, or a trailing screen.
- Corrects the end date for daylight savings time (DST) in 2021 for the Fiji Islands. For more information, see DST correction in Windows for the Fiji Islands: October 13, 2020.
- Security updates to Windows App Platform and Frameworks, Windows Graphics, Windows Shell, Windows Silicon Platform, Windows Cloud Infrastructure, Windows Fundamentals, Windows Authentication, Windows Virtualization, Windows Core Networking, Windows Network Security and Containers, Windows Storage and Filesystems, Windows SQL components, and Windows Remote Desktop.
Known issues in this update
How to get this update
Before installing this update
Prerequisite:
You must install the updates listed below and restart your device before installing the latest Rollup. Installing these updates improves the reliability of the update process and mitigates potential issues while installing the Rollup and applying Microsoft security fixes.
After you install the items above, we strongly recommend that you install the latest SSU (KB4580970). If you are using Windows Update, the latest SSU will be offered to you automatically if you are an ESU customer. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
- The March 12, 2019 servicing stack update (SSU) (KB4490628). To get the standalone package for this SSU, search for it in the Microsoft Update Catalog. This update is required to install updates that are only SHA-2 signed.
- The latest SHA-2 update (KB4474419) released September 10, 2019. If you are using Windows Update, the latest SHA-2 update will be offered to you automatically. This update is required to install updates that are only SHA-2 signed. For more information on SHA-2 updates, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS.
- The August 11, 2020 SSU (KB4570673) or later. To get the standalone package for this SSU, search for it in the Microsoft Update Catalog.
- The Extended Security Updates (ESU) Licensing Preparation Package (KB4538483) released February 11, 2020. The ESU licensing preparation package will be offered to you from WSUS. To get the standalone package for ESU licensing preparation package, search for it in the Microsoft Update Catalog.
REMINDER If you are using Security-only updates, you will also need to install all previous Security-only updates and the latest cumulative update for Internet Explorer (KB4577010).
Install this update
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File information
For a list of the files that are provided in this update, download the file information for cumulative update 4580387.
Source: https://support.microsoft.com/en-us/help/4580387
Direct download links for KB4580387 (ESU only) MSU file from Microsoft Update Catalog:
:ar: Download KB4580387 MSU for Windows 7 32-bit (x86) - 31.4 MB
:ar: Download KB4580387 MSU for Windows 7 64-bit (x64) - 53.9 MB
My Computer
At a glance
64-bit Windows 11 Pro for WorkstationsIntel i7-8700K OC'd to 5 GHz64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600...ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
- Computer type
- PC/Desktop
- Computer Manufacturer/Model Number
- Self built custom
- OS
- 64-bit Windows 11 Pro for Workstations
- CPU
- Intel i7-8700K OC'd to 5 GHz
- Motherboard
- ASUS ROG Maximus XI Formula Z390
- Memory
- 64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz
- Graphics Card(s)
- ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
- Sound Card
- Integrated
- Monitor(s) Displays
- 2 x Samsung Odyssey G7 27"
- Screen Resolution
- 2560x1440
- Hard Drives
- 1TB Samsung 990 PRO M.2,
4TB Samsung 990 PRO PRO M.2,
TerraMaster F8 SSD Plus NAS
- PSU
- Seasonic Prime Titanium 850W
- Case
- Thermaltake Core P3
- Cooling
- Corsair Hydro H115i
- Keyboard
- Logitech wireless K800
- Mouse
- Logitech MX Master 4
- Internet Speed
- 2 Gb/s Download and 100 Mb/s Upload
- Antivirus
- Malwarebyte Anti-Malware Premium
- Browser
- Google Chrome
- Other Info
- Logitech Z625 speaker system,
Logitech BRIO 4K Pro webcam,
HP Color LaserJet Pro MFP M477fdn,
APC SMART-UPS RT 1000 XL - SURT1000XLI,
Galaxy S23 Plus phone

