diff --git a/.github/util/initialize/action.yml b/.github/util/initialize/action.yml
index acfa759c2..ba37f9376 100644
--- a/.github/util/initialize/action.yml
+++ b/.github/util/initialize/action.yml
@@ -17,20 +17,55 @@ runs:
       with:
         node-version: "${{ inputs.node-version }}"
 
+    # See: https://github.com/dart-lang/sdk/issues/52266
+    - run: Invoke-WebRequest https://pub.dev
+      if: runner.os == 'Windows'
+      shell: powershell
+
+    # See: https://github.com/orgs/community/discussions/131594
+    # The composite action requires an explict shell, but bash is not available on windows-arm64 runner.
+    # For the following commands conditionally use bash or powershell based on the runner.os:
     - run: dart pub get
+      if: runner.os != 'Windows'
       shell: bash
 
+    - run: dart pub get
+      if: runner.os == 'Windows'
+      shell: powershell
+
     - run: npm install
+      if: runner.os != 'Windows'
       shell: bash
 
+    - run: npm install
+      if: runner.os == 'Windows'
+      shell: powershell
+
     - uses: bufbuild/buf-setup-action@v1.30.0
       with: {github_token: "${{ inputs.github-token }}"}
 
+    # This composite action requires bash, but bash is not available on windows-arm64 runner.
+    # Avoid running this composite action on non-PR, so that we can release on windows-arm64.
     - name: Check out the language repo
+      if: github.event_name == 'pull_request'
       uses: sass/clone-linked-repo@v1
       with: {repo: sass/sass, path: build/language}
 
+    # Git is not pre-installed on windows-arm64 runner, however actions/checkout support
+    # downloading repo via GitHub API.
+    - name: Check out the language repo
+      if: github.event_name != 'pull_request'
+      uses: actions/checkout@v4
+      with: {repository: sass/sass, path: build/language}
+
     - name: Generate Dart from protobuf
+      if: runner.os != 'Windows'
       run: dart run grinder protobuf
       env: {UPDATE_SASS_SASS_REPO: false}
       shell: bash
+
+    - name: Generate Dart from protobuf
+      if: runner.os == 'Windows'
+      run: dart run grinder protobuf
+      env: {UPDATE_SASS_SASS_REPO: false}
+      shell: powershell
diff --git a/.github/workflows/build-windows.yml b/.github/workflows/build-windows.yml
index bb97bc1a9..86ea17c22 100644
--- a/.github/workflows/build-windows.yml
+++ b/.github/workflows/build-windows.yml
@@ -19,29 +19,13 @@ jobs:
           - arch: ia32
             runner: windows-latest
           - arch: arm64
-            # This should be windows-arm64, but it's broken by several issues:
-            # https://github.com/orgs/community/discussions/131594
-            # https://github.com/orgs/community/discussions/131754
-            runner: windows-latest
+            runner: windows-arm64
 
     steps:
       - uses: actions/checkout@v4
 
-      # See: https://github.com/orgs/community/discussions/131594
-      # The composite action requires bash which is not available on windows-arm64 runner.
-      # - uses: ./.github/util/initialize
-      #   with: {github-token: "${{ github.token }}"}
-
-      - uses: dart-lang/setup-dart@v1
-
-      - uses: bufbuild/buf-setup-action@v1.30.0
-        with: {github_token: "${{ github.token }}"}
-
-      - name: Install Dependencies
-        run: dart pub get --verbose
-
-      - name: Compile Protobuf
-        run: dart run grinder protobuf
+      - uses: ./.github/util/initialize
+        with: {github-token: "${{ github.token }}"}
 
       - name: Build
         run: dart run grinder pkg-standalone-windows-${{ matrix.arch }}