diff --git a/.github/workflows/main_win.yaml b/.github/workflows/main_win.yaml
index 32db4b24c5b50..1d04e1a3cb6c4 100644
--- a/.github/workflows/main_win.yaml
+++ b/.github/workflows/main_win.yaml
@@ -115,6 +115,11 @@ jobs:
         uses: ./.github/actions/docker_win
         with:
           service: ${{ needs.initialize.outputs.docker_service }}
+      - name: Build runner docker image
+        id: build-runner-docker-image
+        uses: ./.github/actions/docker_win
+        with:
+          service: ${{ needs.initialize.outputs.docker_runner_service }}
   # Runs builds.
   build:
     needs: [initialize]
diff --git a/docker/windows/runner/Dockerfile b/docker/windows/runner/Dockerfile
new file mode 100644
index 0000000000000..a49481150bbde
--- /dev/null
+++ b/docker/windows/runner/Dockerfile
@@ -0,0 +1,34 @@
+# Copyright 2022 The Cobalt Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+FROM cobalt-build-win32-base
+
+SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop';$ProgressPreference='silentlyContinue';"]
+
+ARG RUNNER_VERSION
+
+RUN Invoke-WebRequest -Uri 'https://aka.ms/install-powershell.ps1' -OutFile install-powershell.ps1; \
+    powershell -ExecutionPolicy Unrestricted -File ./install-powershell.ps1 -AddToPath
+
+RUN Invoke-WebRequest -Uri https://github.com/actions/runner/releases/download/v$env:RUNNER_VERSION/actions-runner-win-x64-$env:RUNNER_VERSION.zip -OutFile runner.zip; \
+    Expand-Archive -Path C:/runner.zip -DestinationPath C:/actions-runner; \
+    Remove-Item -Path C:\runner.zip; \
+    setx /M PATH $(${Env:PATH} + \";${Env:ProgramFiles}\Git\bin\")
+
+# Required for packaging artifacts.
+RUN choco install -f -y 7zip --version=19.0
+
+ENV TMP "C:\Users\ContainerAdministrator\AppData\Local\Temp2"
+
+ADD runner.ps1 C:/runner.ps1
+CMD ["pwsh", "-ExecutionPolicy", "Unrestricted", "-File", ".\\runner.ps1"]
diff --git a/docker/windows/runner/runner.ps1 b/docker/windows/runner/runner.ps1
new file mode 100644
index 0000000000000..e6a798869e44a
--- /dev/null
+++ b/docker/windows/runner/runner.ps1
@@ -0,0 +1,2 @@
+.\actions-runner\config.cmd --unattended --replace --url https://github.com/${env:RUNNER_REPO} --token $env:RUNNER_TOKEN --name $env:RUNNER_NAME --work $env:RUNNER_WORKDIR --labels "${RUNNER_LABELS}";
+.\actions-runner\run.cmd;