diff --git a/tests/rr/test_fnm.py b/tests/rr/test_fnm.py
index dd399591e..f7345b516 100644
--- a/tests/rr/test_fnm.py
+++ b/tests/rr/test_fnm.py
@@ -330,8 +330,11 @@ def test_fnm_save_as_with_recurse_correctly_copies_subfiles():
     target_path = test_output_dir / name
 
     if target_path.exists() and target_path.is_dir():
-        shutil.rmtree(target_path)
-    target_path.mkdir()
+        try:
+            shutil.rmtree(target_path)
+        except PermissionError:
+            pass
+    target_path.mkdir(exist_ok=True)
 
     with file_load_context() as context:
         context.push_new_parent(source_path_parent, ResolveRelativeMode.ToParent)
@@ -359,8 +362,12 @@ def test_fnm_save_without_recurse_only_copies_fnm_file():
     target_path = test_output_dir / name
 
     if target_path.exists() and target_path.is_dir():
-        shutil.rmtree(target_path)
-    target_path.mkdir()
+        try:
+            shutil.rmtree(target_path)
+        except PermissionError:
+            pass
+
+    target_path.mkdir(exist_ok=True)
 
     with file_load_context() as context:
         context.push_new_parent(source_path_parent, ResolveRelativeMode.ToParent)
@@ -387,8 +394,11 @@ def test_dimr_model_save_with_recurse_correctly_copies_rr_sub_files():
     target_path = test_output_dir / name
 
     if target_path.exists() and target_path.is_dir():
-        shutil.rmtree(target_path)
-    target_path.mkdir()
+        try:
+            shutil.rmtree(target_path)
+        except PermissionError:
+            pass
+    target_path.mkdir(exist_ok=True)
 
     with file_load_context() as context:
         context.push_new_parent(source_path_parent, ResolveRelativeMode.ToParent)
diff --git a/tests/test_basemodel.py b/tests/test_basemodel.py
index b98cbd9f7..f29a41d27 100644
--- a/tests/test_basemodel.py
+++ b/tests/test_basemodel.py
@@ -159,10 +159,16 @@ def test_save_and_load_maintains_correct_paths(
         )
 
         if _external_path.exists():
-            shutil.rmtree(_external_path)
+            try:
+                shutil.rmtree(_external_path)
+            except PermissionError:
+                pass
 
         if output_dir.exists():
-            shutil.rmtree(output_dir)
+            try:
+                shutil.rmtree(output_dir)
+            except PermissionError:
+                pass
 
         model_path = output_dir / "fm.mdu"
 
@@ -403,7 +409,7 @@ def create_bc_file(self, tmp_path: Path, name: str):
 Name                = global
 Function            = timeseries
 Time-interpolation  = linear
-Quantity            = time 
+Quantity            = time
 Unit                = minutes since 2006-12-25 0:00:00
 Quantity            = rainfall_rate
 Unit                = mm day-1
@@ -431,7 +437,7 @@ def change_bc_file(self, tmp_path: Path, name: str):
 Name                = little_change_to_the_file
 Function            = timeseries
 Time-interpolation  = linear
-Quantity            = time 
+Quantity            = time
 Unit                = minutes since 2006-12-25 0:00:00
 Quantity            = rainfall_rate
 Unit                = mm day-1
diff --git a/tests/test_model.py b/tests/test_model.py
index f40798013..e89fc311a 100644
--- a/tests/test_model.py
+++ b/tests/test_model.py
@@ -192,7 +192,10 @@ def test_mdu_model():
     output_fn = output_dir / FMModel._generate_name()
 
     if output_dir.exists():
-        shutil.rmtree(output_dir)
+        try:
+            shutil.rmtree(output_dir)
+        except PermissionError:
+            pass
 
     model.save(filepath=output_fn, recurse=True)