diff --git a/scripts/dev/tui-pty-test-watch.ts b/scripts/dev/tui-pty-test-watch.ts
index 0d8638e395c2..7a79f46fc192 100644
--- a/scripts/dev/tui-pty-test-watch.ts
+++ b/scripts/dev/tui-pty-test-watch.ts
@@ -4,6 +4,7 @@ import { mkdir, open, writeFile } from "node:fs/promises";
 import { createRequire } from "node:module";
 import path from "node:path";
 import { pathToFileURL } from "node:url";
+import { resolveWindowsTaskkillPath } from "../lib/windows-taskkill.mjs";
 
 type Options = {
   altScreen: boolean;
@@ -146,7 +147,7 @@ function signalWindowsProcessTree(
   if (signal === "SIGKILL") {
     args.push("/F");
   }
-  const result = runTaskkill("taskkill", args, { stdio: "ignore" });
+  const result = runTaskkill(resolveWindowsTaskkillPath(), args, { stdio: "ignore" });
   return !result?.error && result?.status === 0;
 }
 
diff --git a/test/scripts/dev-tooling-safety.test.ts b/test/scripts/dev-tooling-safety.test.ts
index 554702dab193..d22fd1fedbdd 100644
--- a/test/scripts/dev-tooling-safety.test.ts
+++ b/test/scripts/dev-tooling-safety.test.ts
@@ -21,9 +21,14 @@ import {
   redactHomePath,
   redactJsonValueForDevToolLog,
 } from "../../scripts/lib/dev-tooling-safety.ts";
+import { resolveWindowsTaskkillPath } from "../../scripts/lib/windows-taskkill.mjs";
 
 const tempDirs: string[] = [];
 
+function expectedTaskkillPath(): string {
+  return resolveWindowsTaskkillPath();
+}
+
 async function waitForCondition(predicate: () => boolean, timeoutMs = 5_000): Promise<void> {
   const started = Date.now();
   while (Date.now() - started < timeoutMs) {
@@ -476,7 +481,7 @@ describe("script-specific dev tooling hardening", () => {
       platform: "win32",
       runTaskkill,
     });
-    expect(runTaskkill).toHaveBeenNthCalledWith(1, "taskkill", ["/PID", "123", "/T"], {
+    expect(runTaskkill).toHaveBeenNthCalledWith(1, expectedTaskkillPath(), ["/PID", "123", "/T"], {
       stdio: "ignore",
     });
 
@@ -484,9 +489,14 @@ describe("script-specific dev tooling hardening", () => {
       platform: "win32",
       runTaskkill,
     });
-    expect(runTaskkill).toHaveBeenNthCalledWith(2, "taskkill", ["/PID", "123", "/T", "/F"], {
-      stdio: "ignore",
-    });
+    expect(runTaskkill).toHaveBeenNthCalledWith(
+      2,
+      expectedTaskkillPath(),
+      ["/PID", "123", "/T", "/F"],
+      {
+        stdio: "ignore",
+      },
+    );
     expect(childKill).not.toHaveBeenCalled();
   });
 
@@ -502,12 +512,17 @@ describe("script-specific dev tooling hardening", () => {
       runTaskkill,
     });
 
-    expect(runTaskkill).toHaveBeenNthCalledWith(1, "taskkill", ["/PID", "123", "/T"], {
-      stdio: "ignore",
-    });
-    expect(runTaskkill).toHaveBeenNthCalledWith(2, "taskkill", ["/PID", "123", "/T", "/F"], {
+    expect(runTaskkill).toHaveBeenNthCalledWith(1, expectedTaskkillPath(), ["/PID", "123", "/T"], {
       stdio: "ignore",
     });
+    expect(runTaskkill).toHaveBeenNthCalledWith(
+      2,
+      expectedTaskkillPath(),
+      ["/PID", "123", "/T", "/F"],
+      {
+        stdio: "ignore",
+      },
+    );
     expect(childKill).not.toHaveBeenCalled();
   });