diff --git a/.github/workflows/functional_test__rector_examples.yml b/.github/workflows/functional_test__rector_examples.yml
index 626382f8..bf253fcc 100644
--- a/.github/workflows/functional_test__rector_examples.yml
+++ b/.github/workflows/functional_test__rector_examples.yml
@@ -7,7 +7,10 @@ jobs:
     run_functional_test:
         name: Run functional test
 # START: SHARED SETUP
-        runs-on: ubuntu-latest  
+        runs-on: ${{ matrix.operating-system }}
+        strategy:
+            matrix:
+                operating-system: ['ubuntu-latest', 'windows-latest']
         steps:
             -   uses: actions/checkout@v2
             -   uses: shivammathur/setup-php@v2
diff --git a/rector.php b/rector.php
index f23db143..ca5a5811 100644
--- a/rector.php
+++ b/rector.php
@@ -15,10 +15,10 @@
     $drupalFinder->locateRoot(__DIR__);
     $drupalRoot = $drupalFinder->getDrupalRoot();
     $parameters->set(Option::AUTOLOAD_PATHS, [
-        $drupalRoot . '/core',
-        $drupalRoot . '/modules',
-        $drupalRoot . '/profiles',
-        $drupalRoot . '/themes'
+        \realpath($drupalRoot . '/core'),
+        \realpath($drupalRoot . '/modules'),
+        \realpath($drupalRoot . '/profiles'),
+        \realpath($drupalRoot . '/themes')
     ]);
 
     $parameters->set(Option::SKIP, ['*/upgrade_status/tests/modules/*']);