diff --git a/mempalace/hooks_cli.py b/mempalace/hooks_cli.py
index 2280c3ec04..767ef023a7 100644
--- a/mempalace/hooks_cli.py
+++ b/mempalace/hooks_cli.py
@@ -25,7 +25,7 @@
 
 
 def _detached_popen_kwargs() -> dict:
-    """Kwargs that fully detach a Popen child so the hook process can exit.
+    """Kwargs that give a Popen child a hidden console so the hook can exit.
 
     Without these, Windows holds the parent open until the child closes the
     inherited stdout/stderr handles — manifesting as "Stop hook hangs" at
@@ -36,7 +36,7 @@ def _detached_popen_kwargs() -> dict:
     kwargs: dict = {"stdin": subprocess.DEVNULL, "close_fds": True}
     if os.name == "nt":
         flags = 0
-        for name in ("DETACHED_PROCESS", "CREATE_NEW_PROCESS_GROUP", "CREATE_BREAKAWAY_FROM_JOB"):
+        for name in ("CREATE_NO_WINDOW", "CREATE_NEW_PROCESS_GROUP", "CREATE_BREAKAWAY_FROM_JOB"):
             flags |= getattr(subprocess, name, 0)
         if flags:
             kwargs["creationflags"] = flags
diff --git a/tests/test_hooks_cli.py b/tests/test_hooks_cli.py
index f06fa63483..8b7f7a5d50 100644
--- a/tests/test_hooks_cli.py
+++ b/tests/test_hooks_cli.py
@@ -1035,17 +1035,26 @@ def test_detached_popen_kwargs_posix(monkeypatch):
 
 
 def test_detached_popen_kwargs_windows(monkeypatch):
-    """On Windows, kwargs include creationflags that fully detach the child.
-
-    Without these, the parent hook hangs at session end on Windows because
-    the child's inherited stdout/stderr handles keep the parent's exit
-    blocked (#1268 root cause for the Python hook path).
+    """On Windows, the miner child gets a hidden console (CREATE_NO_WINDOW),
+    not a detached/no-console child (DETACHED_PROCESS).
+
+    DETACHED_PROCESS gave the child no console at all, which caused any
+    console grandchild it spawned to allocate a fresh *visible* window
+    (#1783). CREATE_NO_WINDOW gives a real-but-invisible console that all
+    descendants inherit, so nothing flashes — while still fixing the
+    #1268 hang (stdin=DEVNULL, close_fds, explicit stdout/stderr redirect,
+    and CREATE_NEW_PROCESS_GROUP for the signal boundary are unchanged).
+    Per the Win32 CreateProcess docs CREATE_NO_WINDOW is ignored when OR'd
+    with DETACHED_PROCESS, so the two must be mutually exclusive.
     """
     from mempalace.hooks_cli import _detached_popen_kwargs
 
     monkeypatch.setattr("mempalace.hooks_cli.os.name", "nt")
-    # Simulate Windows-only Popen flag constants. Patch on the imported
-    # subprocess module within hooks_cli so getattr() picks them up.
+    # Simulate Windows-only Popen flag constants on the imported subprocess
+    # module so getattr() picks them up cross-platform.
+    monkeypatch.setattr(
+        "mempalace.hooks_cli.subprocess.CREATE_NO_WINDOW", 0x08000000, raising=False
+    )
     monkeypatch.setattr(
         "mempalace.hooks_cli.subprocess.DETACHED_PROCESS", 0x00000008, raising=False
     )
@@ -1056,7 +1065,10 @@ def test_detached_popen_kwargs_windows(monkeypatch):
     assert kwargs.get("stdin") is subprocess.DEVNULL
     assert kwargs.get("close_fds") is True
     flags = kwargs.get("creationflags", 0)
-    assert flags & 0x00000008, "DETACHED_PROCESS must be set"
+    assert flags & 0x08000000, "CREATE_NO_WINDOW must be set"
+    assert not (flags & 0x00000008), (
+        "DETACHED_PROCESS must NOT be set (it suppresses CREATE_NO_WINDOW)"
+    )
     assert flags & 0x00000200, "CREATE_NEW_PROCESS_GROUP must be set"