diff --git a/cm_cli/__main__.py b/cm_cli/__main__.py
index b302872c..554a7e03 100644
--- a/cm_cli/__main__.py
+++ b/cm_cli/__main__.py
@@ -238,18 +238,29 @@ def install_node(node_spec_str, is_all=False, cnt_msg='', **kwargs):
 
 
 def reinstall_node(node_spec_str, is_all=False, cnt_msg=''):
-    node_spec = unified_manager.resolve_node_spec(node_spec_str)
+    if core.is_valid_url(node_spec_str):
+        # URL-based: resolve_node_spec returns the full URL as node_name,
+        # but internal dicts are keyed by repo basename or cnr_id.
+        url = node_spec_str.rstrip('/')
+        cnr = unified_manager.get_cnr_by_repo(url)
+        if cnr:
+            node_id = cnr['id']
+            unified_manager.unified_uninstall(node_id, False)
+            unified_manager.purge_node_state(node_id)
+        else:
+            repo_name = os.path.splitext(os.path.basename(url))[0]
+            unified_manager.unified_uninstall(repo_name, True)
+            unified_manager.purge_node_state(repo_name)
 
-    node_name, version_spec, _ = node_spec
+        install_node(node_spec_str, is_all=is_all, cnt_msg=cnt_msg, raise_on_fail=True)
+    else:
+        node_spec = unified_manager.resolve_node_spec(node_spec_str)
+        node_name, version_spec, _ = node_spec
 
-    # Best-effort uninstall via normal path
-    unified_manager.unified_uninstall(node_name, version_spec == 'unknown')
+        unified_manager.unified_uninstall(node_name, version_spec == 'unknown')
+        unified_manager.purge_node_state(node_name)
 
-    # Fallback: purge all state and directories regardless of categorization
-    # Handles categorization mismatch between cm_cli invocations (e.g. unknown→nightly)
-    unified_manager.purge_node_state(node_name)
-
-    install_node(node_name, is_all=is_all, cnt_msg=cnt_msg, raise_on_fail=True)
+        install_node(node_name, is_all=is_all, cnt_msg=cnt_msg, raise_on_fail=True)
 
 
 def fix_node(node_spec_str, is_all=False, cnt_msg=''):
diff --git a/comfyui_manager/common/git_helper.py b/comfyui_manager/common/git_helper.py
index c8ae6cb2..11605b74 100644
--- a/comfyui_manager/common/git_helper.py
+++ b/comfyui_manager/common/git_helper.py
@@ -100,8 +100,24 @@ def gitclone(custom_nodes_path, url, target_hash=None, repo_path=None):
     if repo_path is None:
         repo_path = os.path.join(custom_nodes_path, repo_name)
 
-    # Clone the repository from the remote URL
-    repo = git.Repo.clone_from(url, repo_path, recursive=True, progress=GitProgress())
+    # On Windows, previous failed clones may leave directories with locked
+    # .git/objects/pack/* files (GitPython memory-mapped handle leak).
+    # Rename stale directory out of the way so clone can proceed.
+    if os.path.exists(repo_path):
+        import shutil
+        import uuid as _uuid
+        trash_dir = os.path.join(custom_nodes_path, '.disabled', '.trash')
+        os.makedirs(trash_dir, exist_ok=True)
+        trash = os.path.join(trash_dir, repo_name + f'_{_uuid.uuid4().hex[:8]}')
+        try:
+            os.rename(repo_path, trash)
+            shutil.rmtree(trash, ignore_errors=True)
+        except OSError:
+            shutil.rmtree(repo_path, ignore_errors=True)
+
+    # Disable tqdm progress when stderr is piped to avoid deadlock on Windows.
+    progress = GitProgress() if sys.stderr.isatty() else None
+    repo = git.Repo.clone_from(url, repo_path, recursive=True, progress=progress)
 
     if target_hash is not None:
         print(f"CHECKOUT: {repo_name} [{target_hash}]")
diff --git a/comfyui_manager/glob/manager_core.py b/comfyui_manager/glob/manager_core.py
index 8b166cb3..3c9eb23f 100644
--- a/comfyui_manager/glob/manager_core.py
+++ b/comfyui_manager/glob/manager_core.py
@@ -1854,11 +1854,34 @@ def reserve_script(repo_path, install_cmds):
 
 
 def try_rmtree(title, fullpath):
+    # Tier 1: retry with delay for transient Windows file locks
+    for attempt in range(3):
+        try:
+            shutil.rmtree(fullpath)
+            return
+        except OSError:
+            if attempt < 2:
+                time.sleep(1)
+
+    # Tier 2: rename into .disabled/.trash/ so scanner ignores it
+    trash_dir = os.path.join(os.path.dirname(fullpath), '.disabled', '.trash')
+    os.makedirs(trash_dir, exist_ok=True)
+    trash = os.path.join(trash_dir, os.path.basename(fullpath) + f'_{uuid.uuid4().hex[:8]}')
     try:
-        shutil.rmtree(fullpath)
-    except Exception as e:
-        logging.warning(f"[ComfyUI-Manager] An error occurred while deleting '{fullpath}', so it has been scheduled for deletion upon restart.\nEXCEPTION: {e}")
-        reserve_script(title, ["#LAZY-DELETE-NODEPACK", fullpath])
+        os.rename(fullpath, trash)
+        shutil.rmtree(trash, ignore_errors=True)
+        if not os.path.exists(trash):
+            return
+        # Rename succeeded but delete failed — schedule trash path for lazy delete
+        logging.warning(f"[ComfyUI-Manager] Renamed '{fullpath}' to '{trash}' but could not delete; scheduled for restart.")
+        reserve_script(title, ["#LAZY-DELETE-NODEPACK", trash])
+        return
+    except OSError:
+        pass
+
+    # Tier 3: lazy delete on restart (ComfyUI GUI fallback)
+    logging.warning(f"[ComfyUI-Manager] An error occurred while deleting '{fullpath}', so it has been scheduled for deletion upon restart.")
+    reserve_script(title, ["#LAZY-DELETE-NODEPACK", fullpath])
 
 
 def try_install_script(url, repo_path, install_cmd, instant_execution=False):
diff --git a/comfyui_manager/legacy/manager_core.py b/comfyui_manager/legacy/manager_core.py
index de6b29f3..5d522149 100644
--- a/comfyui_manager/legacy/manager_core.py
+++ b/comfyui_manager/legacy/manager_core.py
@@ -1833,11 +1833,34 @@ def reserve_script(repo_path, install_cmds):
 
 
 def try_rmtree(title, fullpath):
+    # Tier 1: retry with delay for transient Windows file locks
+    for attempt in range(3):
+        try:
+            shutil.rmtree(fullpath)
+            return
+        except OSError:
+            if attempt < 2:
+                time.sleep(1)
+
+    # Tier 2: rename into .disabled/.trash/ so scanner ignores it
+    trash_dir = os.path.join(os.path.dirname(fullpath), '.disabled', '.trash')
+    os.makedirs(trash_dir, exist_ok=True)
+    trash = os.path.join(trash_dir, os.path.basename(fullpath) + f'_{uuid.uuid4().hex[:8]}')
     try:
-        shutil.rmtree(fullpath)
-    except Exception as e:
-        logging.warning(f"[ComfyUI-Manager] An error occurred while deleting '{fullpath}', so it has been scheduled for deletion upon restart.\nEXCEPTION: {e}")
-        reserve_script(title, ["#LAZY-DELETE-NODEPACK", fullpath])
+        os.rename(fullpath, trash)
+        shutil.rmtree(trash, ignore_errors=True)
+        if not os.path.exists(trash):
+            return
+        # Rename succeeded but delete failed — schedule trash path for lazy delete
+        logging.warning(f"[ComfyUI-Manager] Renamed '{fullpath}' to '{trash}' but could not delete; scheduled for restart.")
+        reserve_script(title, ["#LAZY-DELETE-NODEPACK", trash])
+        return
+    except OSError:
+        pass
+
+    # Tier 3: lazy delete on restart (ComfyUI GUI fallback)
+    logging.warning(f"[ComfyUI-Manager] An error occurred while deleting '{fullpath}', so it has been scheduled for deletion upon restart.")
+    reserve_script(title, ["#LAZY-DELETE-NODEPACK", fullpath])
 
 
 def try_install_script(url, repo_path, install_cmd, instant_execution=False):
diff --git a/pyproject.toml b/pyproject.toml
index ce654979..600ebc69 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 [project]
 name = "comfyui-manager"
 license = { text = "GPL-3.0-only" }
-version = "4.1b7"
+version = "4.1b8"
 requires-python = ">= 3.9"
 description = "ComfyUI-Manager provides features to install and manage custom nodes for ComfyUI, as well as various functionalities to assist with ComfyUI."
 readme = "README.md"