Windows Server 2022 V21h2 Build 20348587 20 Full [extra Quality] May 2026

You're referring to Windows Server 2022, specifically build 20348.587, which is a part of the 21H2 (October 2021) release. Here are some of the proper features you can expect in this version:

Azure Arc

Microsoft designed this version to be "cloud-native" while remaining on-premises. Through , administrators can manage Windows Server 2022 instances across physical, virtual, and multi-cloud environments from a single dashboard. windows server 2022 v21h2 build 20348587 20 full

Post-install configuration

• Leaked internal Microsoft test build with a custom version string.
• Mislabeled third-party ISO from unofficial sources (not recommended).
• Typographical error: 20348.587.20 perhaps? Still invalid.

If you already possess an ISO or installed system reporting that exact build number: You're referring to Windows Server 2022, specifically build

Known Issues (as of this build)