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Q2: What is Microsoft doing to help mitigate issues caused by these unsupported applications?Ī2: To help protect our customers from "blue screen" errors and unknown scenarios, Microsoft is requiring all antivirus software vendors to attest to the compatibility of their applications by setting a Windows registry key. Resolving stop (blue screen) errors in Windows 7 Resolving Blue Screen errors in Windows 8.1
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Troubleshoot blue screen errors in Windows 10 Microsoft has assembled the following resources to help potentially impacted customers: Q1: Why are some antivirus solutions incompatible with the January - March, 2018, security updates?Ī1: During testing, we discovered that some third-party applications have been making unsupported calls into Windows kernel memory that cause stop errors (also known as bluescreen errors) to occur. Key="HKEY_LOCAL_MACHINE" Subkey="SOFTWARE\Microsoft\Windows\CurrentVersion\Qualit圜ompat" Value="cadca5fe-87d3-4b96-b7fb-a231484277cc" Type="REG_DWORD” Note: Customers running Windows 8.1 and earlier versions will not receive the January 2018 Windows security updates (or any subsequent Windows security updates) and will not be protected from security vulnerabilities unless and until their antivirus software vendor sets the following registry key:
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For information about how to edit the registry, view the "Changing keys and values" help topic in Registry Editor (Regedit.exe) or view the "Add and delete information in the registry" and "Edit registry data" help topics in Regedt32.exe. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved.
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In cases where customers can't install or run antivirus software, Microsoft recommends manually setting the registry key as described below in order to receive the latest Windows security updates.Ĭaution Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. In these situations, Microsoft recommends installing a compatible and supported antivirus application such as Microsoft Security Essentials or a third-party anti-virus application. In a default installation of Windows 7 SP1 or Windows Server 2008 R2 SP1, customers will not have an antivirus application installed by default. Windows 7 SP1 and Windows Server 2008 R2 SP1 Customers Customers can take advantage of built-in antivirus protection, Windows Defender Antivirus, for Windows 8.1 and Windows 10 devices or a compatible third-party antivirus application. Microsoft recommends all customers protect their devices by running a compatible and supported antivirus program. Windows 10, Windows 8.1, Windows Server 2012 R2 and Windows Server 2016 Customers Windows Defender Antivirus, System Center Endpoint Protection, and Microsoft Security Essentials are compatible with the 2018 Windows security updates and have set the required registry key.
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We continue to require that AV software is compatible and in cases where there are known issues of AV driver compatibility, we will block those devices from updates to avoid any issues. We recommend customers check with their AV provider on compatibility of their installed AV software product. Based on our analysis of available data, we are now lifting the AV compatibility check for the March 2018 Windows security updates for supported Windows 10 devices via Windows Update. Our recent work with our anti-virus (AV) partners on compatibility with Windows updates has now reached a sustained level of broad ecosystem compatibility. We recommend customers check with their AV provider on compatibility of their installed AV software product. We are lifting the AV compatibility check for Windows security updates for supported Windows 7 SP1 and Windows 8.1 devices via Windows Update. We continue to require that AV software be compatible, and in cases where there are known issues of AV driver compatibility, we will block those devices from updates to avoid any issues. To help prevent these stop errors, Microsoft is currently only offering the January and February 2018 Windows security updates to devices that are running antivirus software that is from antivirus software vendors who have confirmed that their antivirus software is compatible by setting a required registry key. These calls may cause stop errors (also known as blue screen errors) that make the device unable to boot. The compatibility issue arises when antivirus applications make unsupported calls into Windows kernel memory. Microsoft has identified a compatibility issue with Microsoft's Windows security updates released in January 2018 and a small number of antivirus software products. Important: Windows security updates and antivirus software Overview
