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AWS appstream2: AppStream 2.0: BYOL Windows AZ availability note

Service: appstream2 · 2026-11-03 · Documentation low

File: appstream2/latest/developerguide/byol-windows-images.md

Summary

Adds an Important note that Windows BYOL for WorkSpaces Applications is available only in a subset of Availability Zones per Region, with links to the WorkSpaces AZ list and the AWS RAM AZ ID mapping documentation.

Security assessment

This is a regional/Availability Zone availability clarification for BYOL Windows images with no security, authentication, encryption, or exposure content; the AZ ID references are purely for resource placement.

Evidence

+Windows BYOL for Amazon WorkSpaces Applications is only available in a subset of the Availability Zones for each supported Region. For the list of AZ IDs that you can use in each Region, see [Availability Zones for WorkSpaces Personal](https://docs.aws.amazon.com/workspaces/latest/adminguide/azs-workspaces.html) in the _Amazon WorkSpaces Administration Guide_. To see the mapping of AZ IDs to Availability Zones in your account, see [AZ IDs for Your Resources](https://docs.aws.amazon.com/ram/latest/userguide/working-with-az-ids.html) in the _AWS RAM User Guide_.

Diff

diff --git a/appstream2/latest/developerguide/byol-windows-images.md b/appstream2/latest/developerguide/byol-windows-images.md
index 2bb0960..eaa42e3 100644
--- a//appstream2/latest/developerguide/byol-windows-images.md
+++ b//appstream2/latest/developerguide/byol-windows-images.md
@@ -233,0 +234,4 @@ Windows BYOL for Amazon WorkSpaces Applications is available in all regions wher
+###### Important
+
+Windows BYOL for Amazon WorkSpaces Applications is only available in a subset of the Availability Zones for each supported Region. For the list of AZ IDs that you can use in each Region, see [Availability Zones for WorkSpaces Personal](https://docs.aws.amazon.com/workspaces/latest/adminguide/azs-workspaces.html) in the _Amazon WorkSpaces Administration Guide_. To see the mapping of AZ IDs to Availability Zones in your account, see [AZ IDs for Your Resources](https://docs.aws.amazon.com/ram/latest/userguide/working-with-az-ids.html) in the _AWS RAM User Guide_.
+