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Azure Virtual Desktop
A Microsoft desktop and app virtualization service that runs on Azure. Previously known as Windows Virtual Desktop.
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Hello @Tchakounte Tchakounte, Hillary
According to the current Azure Virtual Desktop App Attach prerequisites, Windows Server 2022 and Windows Server 2025 are supported session host operating systems for App Attach. Microsoft specifically notes:
"As of April 14, 2026 Windows Server 2022 and 2025 are now supported."
While Windows Server 2019 remains a supported Azure Virtual Desktop session host OS in general, the current App Attach documentation only lists Windows Server 2022 and 2025 for App Attach support and does not mention Windows Server 2019. Based on the published documentation, Windows Server 2019 isn't currently documented as a supported operating system for App Attach.
Therefore, if you're planning a new App Attach deployment, I recommend using:
- Windows Server 2022
- Windows Server 2025
or a supported Windows client OS listed in the Azure Virtual Desktop documentation.
Reference
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