From 69510e728f4c45859dcabec8aae1d787a8303643 Mon Sep 17 00:00:00 2001
From: guimafelipe <guima.felipec@gmail.com>
Date: Fri, 20 Feb 2026 13:33:00 -0800
Subject: [PATCH 1/2] Add WCR platform requirements documenting x86 not
 supported

---
 docs/wcr-platform-requirements.md | 41 +++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 docs/wcr-platform-requirements.md

diff --git a/docs/wcr-platform-requirements.md b/docs/wcr-platform-requirements.md
new file mode 100644
index 0000000000..9489e2e25b
--- /dev/null
+++ b/docs/wcr-platform-requirements.md
@@ -0,0 +1,41 @@
+# Windows Copilot Runtime (WCR) Platform Requirements
+
+## Supported Architectures
+
+Windows Copilot Runtime APIs are supported on the following architectures:
+
+| Architecture | Supported |
+|-------------|-----------|
+| **x64** | Yes |
+| **ARM64** | Yes |
+| **x86** | No |
+
+x86 applications will receive `REGDB_E_CLASSNOTREG (0x80040154)` at runtime
+when attempting to call WCR APIs such as `GetReadyState()`. There is no plan
+to add x86 support at this time.
+
+If your application targets x86, you should either:
+- Retarget to x64 or ARM64 to use WCR features.
+- Guard WCR API calls with architecture checks and provide alternative
+  behavior for x86 builds.
+
+## Hardware Requirements
+
+WCR features require **Copilot+ PC** hardware with a Neural Processing Unit
+(NPU). On devices without the required hardware, `GetReadyState()` will return
+`NotReady` or `Unavailable`.
+
+## Affected APIs
+
+The following WCR APIs are subject to these platform requirements:
+
+- `Microsoft.Windows.AI.Generative.LanguageModel` (Phi Silica)
+- `Microsoft.Windows.AI.Generative.ImageDescriptionGenerator`
+- `Microsoft.Windows.AI.Imaging.ImageSuperResolution`
+- `Microsoft.Windows.AI.ContentModeration.TextRecognizer`
+
+## OS Requirements
+
+- Windows 11 with Copilot+ capable hardware
+- Appropriate Windows Update servicing updates installed
+- AI model packages available via Windows Update

From 4996c0dbb2703029167c5c224c3e2a7769992643 Mon Sep 17 00:00:00 2001
From: Lauren Ciha <laurenciha@microsoft.com>
Date: Fri, 20 Feb 2026 17:35:52 -0800
Subject: [PATCH 2/2] Revise Windows AI Platform requirements documentation

Updated document to reflect the new naming convention from 'Windows Copilot Runtime' to 'Windows AI Platform'. Removed outdated API list and added a new section for getting started.
---
 ...md => windows-ai-platform-requirements.md} | 20 +++++++------------
 1 file changed, 7 insertions(+), 13 deletions(-)
 rename docs/{wcr-platform-requirements.md => windows-ai-platform-requirements.md} (55%)

diff --git a/docs/wcr-platform-requirements.md b/docs/windows-ai-platform-requirements.md
similarity index 55%
rename from docs/wcr-platform-requirements.md
rename to docs/windows-ai-platform-requirements.md
index 9489e2e25b..7af9ad0252 100644
--- a/docs/wcr-platform-requirements.md
+++ b/docs/windows-ai-platform-requirements.md
@@ -1,8 +1,8 @@
-# Windows Copilot Runtime (WCR) Platform Requirements
+# Windows AI Platform Requirements
 
 ## Supported Architectures
 
-Windows Copilot Runtime APIs are supported on the following architectures:
+Windows AI APIs are supported on the following architectures:
 
 | Architecture | Supported |
 |-------------|-----------|
@@ -23,19 +23,13 @@ If your application targets x86, you should either:
 
 WCR features require **Copilot+ PC** hardware with a Neural Processing Unit
 (NPU). On devices without the required hardware, `GetReadyState()` will return
-`NotReady` or `Unavailable`.
-
-## Affected APIs
-
-The following WCR APIs are subject to these platform requirements:
-
-- `Microsoft.Windows.AI.Generative.LanguageModel` (Phi Silica)
-- `Microsoft.Windows.AI.Generative.ImageDescriptionGenerator`
-- `Microsoft.Windows.AI.Imaging.ImageSuperResolution`
-- `Microsoft.Windows.AI.ContentModeration.TextRecognizer`
+`NotSupportedOnCurrentSystem` (see return type [AIReadyState documentation]([url](https://learn.microsoft.com/en-us/windows/windows-app-sdk/api/winrt/microsoft.windows.ai.aifeaturereadystate?view=windows-app-sdk-1.8)) for more info.
 
 ## OS Requirements
 
 - Windows 11 with Copilot+ capable hardware
 - Appropriate Windows Update servicing updates installed
-- AI model packages available via Windows Update
+- [AI model packages available via Windows Update](https://learn.microsoft.com/en-us/windows/release-health/ai-components-release-information)
+
+## Ready to Get Started?
+Check out [Get started building an app with Windows AI APIs](https://learn.microsoft.com/en-us/windows/ai/apis/get-started?tabs=winget%2Cwinui%2Cwinui2) on Microsoft Learn.