create unsupported OS page for VS Dev18

Author: PoulChapman

support/developer/visualstudio/installation/toc.yml

@@ -58,6 +58,8 @@
     href: ./version-visual-studio-requires-april-2014-update.md
   - name: Wait for setup to finish before trying again
     href: ./another-setup-already-running-wait-finish.md
+  - name: Workarounds for Visual Studio on unsupported operating systems
+    href: ./visual-studio-unsupported-operating-systems.md
   - name: Workarounds for Visual Studio 2022 on unsupported operating systems
     href: ./visual-studio-2022-unsupported-operating-systems.md
   - name: Windows Program Compatibility mode is on

support/developer/visualstudio/installation/visual-studio-unsupported-operating-systems copy.md

@@ -0,0 +1,76 @@
+---
+title: Workarounds for Visual Studio on unsupported operating systems
+description: This article describes known issues and workarounds for Visual Studio when installed on unsupported operating systems.
+ms.date: 11/11/2025
+ms.reviewer: pchapman, jagbal
+ms.custom: sap:Installation\Setup, maintenance, or uninstall
+---
+# Workarounds and operating system requirements for Visual Studio
+
+_Applies to:_   Visual Studio 2026  
+
+## Summary
+
+Visual Studio 2026 is supported only on 64-bit editions of currently supported versions of [Windows 11](/lifecycle/products/?terms=windows%2011), [Windows 10](](/lifecycle/products/?terms=windows%2010), and Windows Server 2019 and higher. We don't recommend using Visual Studio on earlier or unsupported versions of Windows and Windows Server. For more information, see [full system requirements](/visualstudio/releases/2026/vs-system-requirements). To enable organizations to schedule their operating system upgrades, this page provides known issues and potential workarounds when using Visual Studio 2022 on an unsupported operating system.
+
+> [!NOTE]
+> Microsoft is unable to provide support or fixes for issues arising from using Visual Studio on an unsupported operating system. For feedback on supported configurations, see [Developer Community](https://developercommunity.visualstudio.com/).
+
+## Arm-based operating systems
+
+Arm64 Visual Studio is supported only on Windows 11 on Arm. X64 Visual Studio isn't supported on ARM operating systems, so performance may not meet expectations. 
+
+The following workloads and components are not supported by Visual Studio ARM64 running on ARM64 operating systems:
+
+- Azure development, with the exception of the Container development tools, which are supported.
+- Data storage and processing, with the exception of the SQL Server Data Tools, which are supported.
+- Data science and analytical applications.
+- Python development.
+- Mobile development with C++.
+- Office/SharePoint development.
+- Microsoft Blend.
+- The XAML designer runs in an x86 process on ARM64.
+
+## Windows LTSC
+
+The Windows Long-term Servicing channel (LTSC) isn't intended for deployment on most or all the devices in an organization. It should be used only for special-purpose devices. Visual Studio is not intended to run on [Windows Long-term Servicing channel](/windows/deployment/update/waas-overview#long-term-servicing-channel). Building apps that run on Windows LTSC is supported.
+
+## Application Virtualization
+
+Visual Studio doesn't support Application Virtualization (App-V) solutions. For example, Microsoft App-V for Windows or third-party app virtualization technologies.
+
+## Azure Virtual Desktops
+
+Running Visual Studio in a virtual machine environment requires a full Windows operating system. Visual Studio doesn't support multiple simultaneous users using the software on the same machine, including shared virtual desktop infrastructure machines or a pooled Windows Virtual Desktop host pool.
+
+## Windows containers
+
+Running Visual Studio Community, Professional, Enterprise, or Team Explorer editions in Windows containers isn't supported. The Build Tools edition is supported.
+
+## 32-bit operating systems
+
+Visual Studio doesn't install on 32-bit operating systems.
+
+## Windows 7 and Windows Server 2008 R2
+
+Visual Studio doesn't install on Windows 7 and Windows Server 2008 R2.
+
+## Windows 8 and Windows Server 2012
+
+Visual Studio doesn't install on Windows 8 and Windows Server 2012.
+
+## Windows 8.1 and Windows Server 2012 R2
+
+Visual Studio doesn't install on Windows 8.1 and Windows Server 2012 R2.
+
+## Windows 10, version 1507 and 1511
+
+Visual Studio 2022 doesn't install on Windows 10 versions 1507 or 1511.
+
+## Windows 10, versions 1607 through 1903
+
+- .NET 4.8.1 isn't supported and doesn't install.
+
+## Windows 10, versions 1909 through 2004
+
+- .NET 4.8.1 isn't supported and doesn't install.