diff --git a/nox/virtualenv.py b/nox/virtualenv.py
index 501118f9..4d928ab5 100644
--- a/nox/virtualenv.py
+++ b/nox/virtualenv.py
@@ -231,9 +231,16 @@ def _clean_location(self) -> bool:
     @property
     def bin_paths(self) -> List[str]:
         """Returns the location of the conda env's bin folder."""
-        # see https://docs.anaconda.com/anaconda/user-guide/tasks/integration/python-path/#examples
+        # see https://github.com/conda/conda/blob/f60f0f1643af04ed9a51da3dd4fa242de81e32f4/conda/activate.py#L563-L572
         if _SYSTEM == "Windows":
-            return [self.location, os.path.join(self.location, "Scripts")]
+            return [
+                self.location,
+                os.path.join(self.location, "Library", "mingw-w64", "bin"),
+                os.path.join(self.location, "Library", "usr", "bin"),
+                os.path.join(self.location, "Library", "bin"),
+                os.path.join(self.location, "Scripts"),
+                os.path.join(self.location, "bin"),
+            ]
         else:
             return [os.path.join(self.location, "bin")]
 
diff --git a/tests/test_virtualenv.py b/tests/test_virtualenv.py
index c1df7119..441eaa89 100644
--- a/tests/test_virtualenv.py
+++ b/tests/test_virtualenv.py
@@ -230,7 +230,14 @@ def test_conda_env_create_verbose(make_conda):
 @mock.patch("nox.virtualenv._SYSTEM", new="Windows")
 def test_condaenv_bin_windows(make_conda):
     venv, dir_ = make_conda()
-    assert [dir_.strpath, dir_.join("Scripts").strpath] == venv.bin_paths
+    assert [
+        dir_.strpath,
+        dir_.join("Library", "mingw-w64", "bin").strpath,
+        dir_.join("Library", "usr", "bin").strpath,
+        dir_.join("Library", "bin").strpath,
+        dir_.join("Scripts").strpath,
+        dir_.join("bin").strpath,
+    ] == venv.bin_paths
 
 
 @pytest.mark.skipif(not HAS_CONDA, reason="Missing conda command.")