diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0b54cd43..22e2abd4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,7 +4,11 @@ on: [pull_request]
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python 3.7
@@ -13,7 +17,7 @@ jobs:
         python-version: 3.7
     - name: Install Python dependencies
       run: |
-        pip install -e .[all]
+        pip install -e ".[all]"
         pip install git+https://github.com/huggingface/transformers
     - name: Run Tests
-      run: make test
+      run: python -m pytest -n 1 --dist=loadfile -s -v ./tests/
diff --git a/kit/src/routes/endpoints/toc.ts b/kit/src/routes/endpoints/toc.ts
index 97a429d5..c4889d01 100644
--- a/kit/src/routes/endpoints/toc.ts
+++ b/kit/src/routes/endpoints/toc.ts
@@ -1,6 +1,7 @@
 import path from "path";
 import fs from "fs";
 import yaml from "js-yaml";
+import { fileURLToPath } from "url";
 
 export interface RawChapter {
   title: string;
@@ -23,7 +24,7 @@ const flattener = (_flatChapters: RawChapter[], chapter: RawChapter): RawChapter
 };
 
 export async function get() {
-  const filepath = path.join(import.meta.url.replace('file://', ''), '../..', '_toctree.yml');
+  const filepath = path.join(fileURLToPath(import.meta.url), '../..', '_toctree.yml');
   const content = (await fs.promises.readFile(filepath)).toString("utf-8");
 
   const chapters: RawChapter[] = yaml.load(content) as RawChapter[];
diff --git a/src/doc_builder/build_doc.py b/src/doc_builder/build_doc.py
index 2f05b1c1..866892d4 100644
--- a/src/doc_builder/build_doc.py
+++ b/src/doc_builder/build_doc.py
@@ -463,7 +463,7 @@ def check_toc_integrity(doc_folder, output_dir):
         output_dir (`str` or `os.PathLike`): The folder where the doc is built.
     """
     output_dir = Path(output_dir)
-    doc_files = [str(f.relative_to(output_dir).with_suffix("").as_posix()) for f in output_dir.glob("**/*.mdx")]
+    doc_files = [str(f.relative_to(output_dir).with_suffix("")) for f in output_dir.glob("**/*.mdx")]
 
     toc_file = Path(doc_folder) / "_toctree.yml"
     with open(toc_file, "r", encoding="utf-8") as f:
@@ -489,6 +489,8 @@ def check_toc_integrity(doc_folder, output_dir):
         # Toc has some nested sections in the API doc for instance, so we recurse.
         toc.extend([sec for sec in part["sections"] if "sections" in sec])
 
+    # normalize paths to current OS
+    toc_sections = [str(Path(path)) for path in toc_sections]
     files_not_in_toc = [f for f in doc_files if f not in toc_sections]
     doc_config = get_doc_config()
     disable_toc_check = getattr(doc_config, "disable_toc_check", False)
diff --git a/src/doc_builder/commands/preview.py b/src/doc_builder/commands/preview.py
index 232e3fd3..3b6667fb 100644
--- a/src/doc_builder/commands/preview.py
+++ b/src/doc_builder/commands/preview.py
@@ -16,6 +16,7 @@
 
 import argparse
 import os
+import platform
 import shutil
 import subprocess
 import tempfile
@@ -135,6 +136,7 @@ def start_sveltekit_dev(tmp_dir, env, args):
         check=True,
         encoding="utf-8",
         cwd=working_dir,
+        shell=platform.system() == "Windows",
     )
 
     # start sveltekit in dev mode
@@ -144,6 +146,7 @@ def start_sveltekit_dev(tmp_dir, env, args):
         encoding="utf-8",
         cwd=working_dir,
         env=env,
+        shell=platform.system() == "Windows",
     )