diff --git a/studio/install_llama_prebuilt.py b/studio/install_llama_prebuilt.py
index fc3c65bc4b..abe31ebfff 100755
--- a/studio/install_llama_prebuilt.py
+++ b/studio/install_llama_prebuilt.py
@@ -1433,7 +1433,7 @@ def detect_host() -> HostInfo:
 
     # Detect AMD ROCm (HIP) -- require actual GPU, not just tools installed
     has_rocm = False
-    if not is_macos:
+    if is_linux:
         for _cmd, _marker in (
             (["rocminfo"], "gfx"),
             (["amd-smi", "list"], "gpu"),
@@ -1449,6 +1449,16 @@ def detect_host() -> HostInfo:
                 if _marker in _result.stdout.lower():
                     has_rocm = True
                     break
+    elif is_windows:
+        # Windows: check for HIP runtime DLL or hipinfo tool
+        if shutil.which("hipinfo") or shutil.which("amd-smi"):
+            has_rocm = True
+        elif any(
+            Path(d).joinpath("amdhip64.dll").exists()
+            for d in os.environ.get("PATH", "").split(os.pathsep)
+            if d
+        ):
+            has_rocm = True
 
     return HostInfo(
         system = system,
diff --git a/tests/studio/install/test_rocm_support.py b/tests/studio/install/test_rocm_support.py
index 5955d79aec..fe76d920a5 100644
--- a/tests/studio/install/test_rocm_support.py
+++ b/tests/studio/install/test_rocm_support.py
@@ -403,6 +403,13 @@ class TestHostInfoRocm:
         source = inspect.getsource(prebuilt_mod.detect_host)
         assert "ROCM_PATH" in source or "rocm" in source.lower()
 
+    def test_detect_host_windows_rocm_detection(self):
+        """detect_host() source should have Windows-specific HIP detection."""
+        import inspect
+
+        source = inspect.getsource(prebuilt_mod.detect_host)
+        assert "hipinfo" in source or "amdhip64" in source
+
 
 # =============================================================================
 # TEST: install_python_stack.py -- _detect_rocm_version