diff --git a/.github/workflows/tests_windows.yml b/.github/workflows/tests_windows.yml
new file mode 100644
index 00000000..71e48cd4
--- /dev/null
+++ b/.github/workflows/tests_windows.yml
@@ -0,0 +1,161 @@
+name: Testing (Windows)
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+  release:
+    types: [published]
+
+env:
+  DISTUTILS_USE_SDK: 1
+  MSSdk: 1
+
+jobs:
+  win-set-matrix-x86:
+    name: Set builder matrix
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.10.0
+        with:
+          access_token: ${{ github.token }}
+
+      - uses: actions/checkout@v2
+
+      - name: Kokkos execution strategy
+        id: exec_model
+        run: echo "::set-output name=exec_model::[\"SERIAL\"]" # We may also adopt [OPENMP, THREADS] in later iterations
+
+      - name: Kokkos version
+        id: kokkos_version
+        run: echo "::set-output name=kokkos_version::[\"3.6.00\"]"
+
+    outputs:
+      exec_model: ${{ steps.exec_model.outputs.exec_model }}
+      kokkos_version: ${{ steps.kokkos_version.outputs.kokkos_version }}
+
+  build_dependencies:
+    needs: [win-set-matrix-x86]
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest]
+        exec_model: ${{ fromJson(needs.win-set-matrix-x86.outputs.exec_model) }}
+        kokkos_version: ${{ fromJson(needs.win-set-matrix-x86.outputs.kokkos_version) }}
+
+    name: Kokkos core (${{ matrix.exec_model }})
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Cancel previous runs
+        uses: styfle/cancel-workflow-action@0.10.0
+        with:
+          access_token: ${{ github.token }}
+
+      - name: Configure MSVC for amd64 # Use cl.exe as a default compiler
+        uses: ilammy/msvc-dev-cmd@v1
+        with:
+          arch: amd64
+
+      - name: Cache installation directories
+        id: kokkos-cache
+        uses: actions/cache@v3
+        with:
+          path: D:\a\install_dir\${{ matrix.exec_model }}
+          key: ${{ matrix.os }}-kokkos${{ matrix.kokkos_version }}-${{ matrix.exec_model }}
+
+      - name: Clone Kokkos libs
+        if: steps.kokkos-cache.outputs.cache-hit != 'true'
+        run: |
+          cd D:\a
+          git clone https://github.com/kokkos/kokkos.git
+          cd D:\a\kokkos
+          git checkout ${{ matrix.kokkos_version }}
+          cd D:\a
+
+      - name: Create installation directory
+        if: steps.kokkos-cache.outputs.cache-hit != 'true'
+        run: mkdir -p D:\a\install_dir\${{ matrix.exec_model }}
+
+      - name: Install dependencies
+        if: steps.kokkos-cache.outputs.cache-hit != 'true'
+        run: |
+          python -m pip install cmake build
+
+      - name: Build Kokkos core library
+        if: steps.kokkos-cache.outputs.cache-hit != 'true'
+        run: |
+          cd D:\a\kokkos
+          cmake -BBuild . -DCMAKE_INSTALL_PREFIX=D:\a\install_dir\${{ matrix.exec_model }} `
+                          -DKokkos_ENABLE_COMPLEX_ALIGN=OFF `
+                          -DKokkos_ENABLE_${{ matrix.exec_model }}=ON `
+                          -DKokkos_ENABLE_DEPRECATION_WARNINGS=OFF `
+                          -DCMAKE_CXX_STANDARD=17 `
+                          -DCMAKE_POSITION_INDEPENDENT_CODE=ON `
+                          -DCMAKE_BUILD_TYPE=RelWithDebInfo `
+                          -T clangcl
+          cmake --build ./Build --config RelWithDebInfo --verbose
+          cmake --install ./Build --config RelWithDebInfo --verbose
+
+  pythontests_serial:
+    needs: [win-set-matrix-x86, build_dependencies]
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest]
+        arch: [AMD64]
+        exec_model: ${{ fromJson(needs.win-set-matrix-x86.outputs.exec_model) }}
+        kokkos_version: ${{ fromJson(needs.win-set-matrix-x86.outputs.kokkos_version) }}
+    name: Python tests (SERIAL)
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.10.0
+        with:
+          access_token: ${{ github.token }}
+
+      - name: Configure MSVC for amd64 # Use cl.exe as a default compiler
+        uses: ilammy/msvc-dev-cmd@v1
+        with:
+          arch: amd64
+
+      - name: Restoring cached dependencies
+        id: kokkos-cache
+        uses: actions/cache@v3
+        with:
+          path: D:\a\install_dir\${{ matrix.exec_model }}
+          key: ${{ matrix.os }}-kokkos${{ matrix.kokkos_version }}-${{ matrix.exec_model }}
+
+      - uses: actions/checkout@v3
+
+      - name: Copy cached libraries
+        if: steps.kokkos-cache.outputs.cache-hit == 'true'
+        run: |
+          Copy-Item -Path "D:\a\install_dir\${{ matrix.exec_model }}\" `
+                    -Destination "D:\a\pennylane-lightning-kokkos\pennylane-lightning-kokkos\Kokkos" -Recurse -Force
+
+      - uses: actions/setup-python@v3
+        name: Install Python
+        with:
+          python-version: '3.10'
+
+      - name: Get required Python packages
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install pytest pytest-mock flaky
+          pip uninstall pennylane -y
+          pip install git+https://github.com/PennyLaneAI/pennylane.git
+
+      - name: Install lightning.kokkos device
+        run: |
+          Set-Variable -Name BACKEND -Value "SERIAL"
+          python setup.py build_ext
+          python -m pip install -e .
+
+      - name: Run unit tests
+        run: |
+          pytest tests/
+          pl-device-test --device lightning.kokkos
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 382de20a..58b8a86e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,7 +13,7 @@ set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15" CACHE STRING "Minimum OS X deployment ve
 
 project(pennylane_lightning_kokkos
     DESCRIPTION "Lightning-Kokkos bindings for PennyLane. Backed by the Kokkos library."
-    LANGUAGES CXX C
+    LANGUAGES C CXX
 )
 
 ##########################
@@ -101,14 +101,50 @@ set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
 option(Kokkos_ENABLE_DEPRECATION_WARNINGS "Enable Kokkos deprecation warnings" OFF)
 
-include(FetchContent)
-FetchContent_Declare(kokkos
-  GIT_REPOSITORY https://github.com/kokkos/kokkos.git
-  GIT_TAG        3.6.00
+find_package(Kokkos
+HINTS   ${CMAKE_SOURCE_DIR}/Kokkos
+        /usr
+        /usr/local
+        /opt
 )
-FetchContent_MakeAvailable(kokkos)
-get_target_property(PLKOKKOS_KOKKOS_INC_DIR kokkos INTERFACE_INCLUDE_DIRECTORIES)
-set_target_properties(kokkos PROPERTIES INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${PLKOKKOS_KOKKOS_INC_DIR}")
+if(Kokkos_FOUND)
+    message(STATUS "Found existing Kokkos library")
+endif()
+
+find_package(KokkosKernels
+HINTS   ${CMAKE_SOURCE_DIR}/Kokkos
+        ${CMAKE_SOURCE_DIR}/KokkosKernels
+        /usr
+        /usr/local
+        /opt
+)
+if(KokkosKernels_FOUND)
+    message(STATUS "Found existing Kokkos Kernels library")
+endif()
+
+
+if (NOT (Kokkos_FOUND AND KokkosKernels_FOUND))
+    # Setting the Serial device.
+    option(Kokkos_ENABLE_SERIAL  "Enable Kokkos SERIAL device" ON)
+    message(STATUS "KOKKOS SERIAL DEVICE ENABLED.")
+
+    option(Kokkos_ENABLE_COMPLEX_ALIGN "Enable complex alignment in memory" OFF)
+
+    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+    include(FetchContent)
+
+    FetchContent_Declare(kokkos
+                        GIT_REPOSITORY https://github.com/kokkos/kokkos.git
+                        GIT_TAG        3.6.00
+                        GIT_SUBMODULES "" # Avoid recursively cloning all submodules
+    )
+
+    FetchContent_MakeAvailable(kokkos)
+
+    get_target_property(PLKOKKOS_KOKKOS_INC_DIR kokkos INTERFACE_INCLUDE_DIRECTORIES)
+    set_target_properties(kokkos PROPERTIES INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${PLKOKKOS_KOKKOS_INC_DIR}")
+
+endif()
 
 
 ############################
@@ -159,6 +195,12 @@ if(PLKOKKOS_ENABLE_WARNINGS)
     # Explicitly disable warnings for Kokkos-specific library issues.
 endif()
 
+if(WIN32) # For M_PI
+target_compile_options(kokkos INTERFACE "/D_USE_MATH_DEFINES=ON")
+target_compile_options(lightning_kokkos_qubit_ops PUBLIC "/D_USE_MATH_DEFINES=ON")
+target_compile_options(pennylane_lightning_kokkos INTERFACE "/D_USE_MATH_DEFINES=ON")
+endif()
+
 if(PLKOKKOS_ENABLE_NATIVE)
     message(STATUS "ENABLE_NATIVE is ON. Using -march=native")
     add_compile_options(-march=native)
@@ -166,6 +208,11 @@ if(PLKOKKOS_ENABLE_NATIVE)
     target_compile_options(lightning_kokkos_qubit_ops PRIVATE -march=native)
 endif()
 
+
+IF(MSVC)
+    SET(CMAKE_CXX_FLAGS "/EHsc")
+ENDIF(MSVC)
+
 if (PLKOKKOS_BUILD_TESTS)
     enable_testing()
 endif()
diff --git a/pennylane_lightning_kokkos/_version.py b/pennylane_lightning_kokkos/_version.py
index 96a3bd19..828d3a41 100644
--- a/pennylane_lightning_kokkos/_version.py
+++ b/pennylane_lightning_kokkos/_version.py
@@ -16,4 +16,4 @@
    Version number (major.minor.patch[-label])
 """
 
-__version__ = "0.27.0"
+__version__ = "0.28.0-dev2"
diff --git a/pennylane_lightning_kokkos/src/CMakeLists.txt b/pennylane_lightning_kokkos/src/CMakeLists.txt
index 55163805..bf803d2b 100644
--- a/pennylane_lightning_kokkos/src/CMakeLists.txt
+++ b/pennylane_lightning_kokkos/src/CMakeLists.txt
@@ -1,4 +1,7 @@
 project(lightning_kokkos_components LANGUAGES CXX)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_EXTENSIONS OFF)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 ###############################################################################
 # Include all nested sources directories
diff --git a/pennylane_lightning_kokkos/src/simulator/ExpValFunctors.hpp b/pennylane_lightning_kokkos/src/simulator/ExpValFunctors.hpp
index 7304565f..2905a6ee 100644
--- a/pennylane_lightning_kokkos/src/simulator/ExpValFunctors.hpp
+++ b/pennylane_lightning_kokkos/src/simulator/ExpValFunctors.hpp
@@ -1,12 +1,16 @@
 #pragma once
 
-#include <Kokkos_Core.hpp>
+#ifndef _USE_MATH_DEFINES
+#define _USE_MATH_DEFINES // for C++
+#endif
+#include <cmath>
 
 #include "Util.hpp"
+#include <Kokkos_Core.hpp>
 
 namespace {
 using namespace Pennylane::Util;
-}
+} // namespace
 
 namespace Pennylane {
 namespace Functors {
diff --git a/pennylane_lightning_kokkos/src/simulator/GateFunctors.hpp b/pennylane_lightning_kokkos/src/simulator/GateFunctors.hpp
index 904c0fe2..bbfc6c90 100644
--- a/pennylane_lightning_kokkos/src/simulator/GateFunctors.hpp
+++ b/pennylane_lightning_kokkos/src/simulator/GateFunctors.hpp
@@ -1,5 +1,10 @@
 #pragma once
 
+#ifndef _USE_MATH_DEFINES
+#define _USE_MATH_DEFINES // for C++
+#endif
+#include <cmath>
+
 #include <Kokkos_Core.hpp>
 #include <Kokkos_StdAlgorithms.hpp>
 
diff --git a/pennylane_lightning_kokkos/src/tests/CMakeLists.txt b/pennylane_lightning_kokkos/src/tests/CMakeLists.txt
index 4dba552a..b8d7c62c 100644
--- a/pennylane_lightning_kokkos/src/tests/CMakeLists.txt
+++ b/pennylane_lightning_kokkos/src/tests/CMakeLists.txt
@@ -6,7 +6,7 @@ set(CMAKE_CXX_STANDARD 17)
 
 # Default build type for test code is Debug
 if(NOT CMAKE_BUILD_TYPE)
-    set(CMAKE_BUILD_TYPE Debug)
+    set(CMAKE_BUILD_TYPE RelWithDebInfo)
 endif()
 
 option(PLKOKKOS_ENABLE_NATIVE "Enable native CPU build tuning" OFF)
diff --git a/pennylane_lightning_kokkos/src/util/CMakeLists.txt b/pennylane_lightning_kokkos/src/util/CMakeLists.txt
index 9d202c1c..a3275e46 100644
--- a/pennylane_lightning_kokkos/src/util/CMakeLists.txt
+++ b/pennylane_lightning_kokkos/src/util/CMakeLists.txt
@@ -1,7 +1,9 @@
 project(lightning_kokkos_utils LANGUAGES CXX)
 set(CMAKE_CXX_STANDARD 17)
 
-add_library(lightning_kokkos_utils INTERFACE)
+set(UTIL_FILES Error.hpp Util.hpp CACHE INTERNAL "" FORCE)
+
+add_library(lightning_kokkos_utils INTERFACE ${UTIL_FILES})
 target_include_directories(lightning_kokkos_utils INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
                                                      $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/DS>
-)
+)
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 3270d996..0074bca7 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@ class CMakeBuild(build_ext):
             ("arch=", "A", "Define backend targetted architecture"),
         ]
 
-        backends = {"CUDA", "HIP", "OPENMP", "THREADS", "SERIAL"}
+        backends = {"CUDA", "HIP", "OPENMP", "THREADS", "SERIAL", "SYCL"}
 
         def initialize_options(self):
             super().initialize_options()
@@ -68,7 +68,8 @@ def build_extension(self, ext: CMakeExtension):
 
             # Set Python_EXECUTABLE instead if you use PYBIND11_FINDPYTHON
             configure_args = [
-                f"-DCMAKE_CXX_FLAGS=-fno-lto",
+                f"-DCMAKE_CXX_STANDARD=17",
+                f"-DCMAKE_CXX_FLAGS=-fno-lto", 
                 f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={extdir}",
                 f"-DPYTHON_EXECUTABLE={sys.executable}",
                 f"-DCMAKE_BUILD_TYPE={cfg}",  # not used on MSVC, but no harm
@@ -118,7 +119,7 @@ def build_extension(self, ext: CMakeExtension):
                 else:
                     configure_args += ["-DKokkos_ENABLE_OPENMP=OFF"]
             elif platform.system() == "Windows":
-                configure_args += ["-DKokkos_ENABLE_OPENMP=OFF"] # only build with Clang under Windows
+                configure_args += ["-DKokkos_ENABLE_OPENMP=OFF"]
             else:
                 if platform.system() != "Linux":
                     raise RuntimeError(f"Unsupported '{platform.system()}' platform")
@@ -129,7 +130,7 @@ def build_extension(self, ext: CMakeExtension):
             subprocess.check_call(
                 ["cmake", str(ext.sourcedir)] + configure_args, cwd=self.build_temp
             )
-            subprocess.check_call(["cmake", "--build", "."] + build_args, cwd=self.build_temp)
+            subprocess.check_call(["cmake", "--build", ".", "--verbose"] + build_args, cwd=self.build_temp)
 
 
 with open("pennylane_lightning_kokkos/_version.py") as f: