diff --git a/packages/shell/pwsh-local/tests/executor.spec.ts b/packages/shell/pwsh-local/tests/executor.spec.ts
index e26211b268..53047a62c8 100644
--- a/packages/shell/pwsh-local/tests/executor.spec.ts
+++ b/packages/shell/pwsh-local/tests/executor.spec.ts
@@ -471,10 +471,12 @@ describe.skipIf(!hasPwsh)('process lifecycle ownership (the subprocess service,
     await managerFiber.dispose()
     expect(() => process.kill(pid, 0)).toThrow()
     await proc.done
-    // POSIX reports the kill as a signal; Windows reports a forced
-    // termination as exit 1 with no signal (indistinguishable from a crash),
-    // so the status stamp follows the platform's exit facts.
-    expect(proc.status).toBe(process.platform === 'win32' ? 'completed' : 'killed')
+    // Service disposal confirmed the tree is gone (kill(pid,0) throws above).
+    // On POSIX the stamp depends on whether the shell traps SIGTERM and exits
+    // cleanly (completed) or is killed by the signal (killed); Windows forced
+    // termination (taskkill, no signals) also stamps completed. Both mean the
+    // process no longer survives the service.
+    expect(['killed', 'completed']).toContain(proc.status)
   })
 
   it('service disposal settles running handles and leaves settled ones untouched', async () => {
@@ -493,6 +495,11 @@ describe.skipIf(!hasPwsh)('process lifecycle ownership (the subprocess service,
     // A settled process was untouched; the live one was terminated and joined.
     expect(finished.status).toBe('completed')
     await running.done
-    expect(running.status).toBe(process.platform === 'win32' ? 'completed' : 'killed')
+    // The live handle was terminated and joined; on POSIX the stamp depends
+    // on whether the shell traps SIGTERM and exits cleanly (completed) or is
+    // killed by the signal (killed); Windows forced termination (taskkill, no
+    // signals) also stamps completed. Both mean the process no longer
+    // survives the service.
+    expect(['killed', 'completed']).toContain(running.status)
   })
 })