diff --git a/test/bundler/bundler_cjs2esm.test.ts b/test/bundler/bundler_cjs2esm.test.ts
index 5b34a27f8f..01a17356b6 100644
--- a/test/bundler/bundler_cjs2esm.test.ts
+++ b/test/bundler/bundler_cjs2esm.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: panic "TODO on Windows"
 import assert from "assert";
 import dedent from "dedent";
 import { itBundled, testForFile } from "./expectBundled";
diff --git a/test/bundler/esbuild/importstar.test.ts b/test/bundler/esbuild/importstar.test.ts
index 4b49a68da0..cabe81a4b1 100644
--- a/test/bundler/esbuild/importstar.test.ts
+++ b/test/bundler/esbuild/importstar.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: panic "TODO on Windows"
 import assert from "assert";
 import { itBundled, testForFile } from "../expectBundled";
 var { describe, test, expect } = testForFile(import.meta.path);
diff --git a/test/bundler/esbuild/loader.test.ts b/test/bundler/esbuild/loader.test.ts
index 380f74eda3..c76fdd18ac 100644
--- a/test/bundler/esbuild/loader.test.ts
+++ b/test/bundler/esbuild/loader.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: panic "TODO on Windows"
 import fs from "fs";
 import { itBundled, testForFile } from "../expectBundled";
 var { describe, test, expect } = testForFile(import.meta.path);
diff --git a/test/bundler/esbuild/packagejson.test.ts b/test/bundler/esbuild/packagejson.test.ts
index 8fed430d38..5d459b968a 100644
--- a/test/bundler/esbuild/packagejson.test.ts
+++ b/test/bundler/esbuild/packagejson.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: panic "TODO on Windows"
 import { itBundled, testForFile } from "../expectBundled";
 var { describe, test, expect } = testForFile(import.meta.path);
 
diff --git a/test/bundler/esbuild/splitting.test.ts b/test/bundler/esbuild/splitting.test.ts
index cb74494cbc..fbf5634fe7 100644
--- a/test/bundler/esbuild/splitting.test.ts
+++ b/test/bundler/esbuild/splitting.test.ts
@@ -2,9 +2,6 @@ import assert from "assert";
 import { readdirSync } from "fs";
 import { itBundled, testForFile } from "../expectBundled";
 var { describe, test, expect } = testForFile(import.meta.path);
-import process from "node:process";
-
-const isWindows = process.platform === "win32";
 
 // Tests ported from:
 // https://github.com/evanw/esbuild/blob/main/internal/bundler_tests/bundler_splitting_test.go
@@ -278,9 +275,7 @@ describe("bundler", () => {
       { file: "/out/b.js", stdout: "[null]" },
     ],
     bundleWarnings: {
-      [isWindows ? "\\common.js" : "/common.js"]: [
-        `Import "missing" will always be undefined because there is no matching export in "empty.js"`,
-      ],
+      "/common.js": [`Import "missing" will always be undefined because there is no matching export in "empty.js"`],
     },
   });
   itBundled("splitting/ReExportESBuildIssue273", {
diff --git a/test/cli/hot/hot.test.ts b/test/cli/hot/hot.test.ts
index c3c97fc782..422f87eb67 100644
--- a/test/cli/hot/hot.test.ts
+++ b/test/cli/hot/hot.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { spawn } from "bun";
 import { expect, it } from "bun:test";
 import { bunExe, bunEnv, tempDirWithFiles, bunRun, bunRunAsScript } from "harness";
diff --git a/test/cli/install/bun-create.test.ts b/test/cli/install/bun-create.test.ts
index 50783d8c18..97ecb89714 100644
--- a/test/cli/install/bun-create.test.ts
+++ b/test/cli/install/bun-create.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { spawn, spawnSync } from "bun";
 import { afterEach, beforeEach, expect, it, describe } from "bun:test";
 import { bunExe, bunEnv as env } from "harness";
diff --git a/test/cli/install/bun-remove.test.ts b/test/cli/install/bun-remove.test.ts
index 7659215af7..2a302821af 100644
--- a/test/cli/install/bun-remove.test.ts
+++ b/test/cli/install/bun-remove.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { bunExe, bunEnv as env } from "harness";
 import { mkdir, mkdtemp, realpath, rm, writeFile } from "fs/promises";
 import { join, relative } from "path";
diff --git a/test/cli/install/bun-update.test.ts b/test/cli/install/bun-update.test.ts
index 4a5f53b61c..29dcec610d 100644
--- a/test/cli/install/bun-update.test.ts
+++ b/test/cli/install/bun-update.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { file, listen, Socket, spawn } from "bun";
 import { afterAll, afterEach, beforeAll, beforeEach, expect, it } from "bun:test";
 import { bunExe, bunEnv as env, toBeValidBin, toHaveBins } from "harness";
diff --git a/test/cli/install/migration/migrate.test.ts b/test/cli/install/migration/migrate.test.ts
index bd5c9f2795..5af930d5dc 100644
--- a/test/cli/install/migration/migrate.test.ts
+++ b/test/cli/install/migration/migrate.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import fs from "fs";
 import { test, expect, beforeAll, afterAll } from "bun:test";
 import { bunEnv, bunExe } from "harness";
diff --git a/test/cli/run/env.test.ts b/test/cli/run/env.test.ts
index 6fcacd6ab9..a381338535 100644
--- a/test/cli/run/env.test.ts
+++ b/test/cli/run/env.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { describe, expect, test, beforeAll, afterAll } from "bun:test";
 import { bunRun, bunRunAsScript, bunTest, tempDirWithFiles, bunExe, bunEnv } from "harness";
 import path from "path";
diff --git a/test/cli/run/run-extensionless.test.ts b/test/cli/run/run-extensionless.test.ts
index 077b2b5f56..f2c168847c 100644
--- a/test/cli/run/run-extensionless.test.ts
+++ b/test/cli/run/run-extensionless.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { expect, test } from "bun:test";
 import { mkdirSync, realpathSync } from "fs";
 import { bunEnv, bunExe } from "harness";
diff --git a/test/cli/test/bun-test.test.ts b/test/cli/test/bun-test.test.ts
index 0c28800280..1ae8d3557c 100644
--- a/test/cli/test/bun-test.test.ts
+++ b/test/cli/test/bun-test.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { join, resolve, dirname } from "node:path";
 import { tmpdir } from "node:os";
 import { mkdtempSync, writeFileSync, rmSync, mkdirSync } from "node:fs";
diff --git a/test/js/bun/console/console-iterator.test.ts b/test/js/bun/console/console-iterator.test.ts
index ba20d74bda..6c10625440 100644
--- a/test/js/bun/console/console-iterator.test.ts
+++ b/test/js/bun/console/console-iterator.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { spawnSync, spawn } from "bun";
 import { describe, expect, it } from "bun:test";
 import { bunExe } from "harness";
diff --git a/test/js/bun/util/bun-isMainThread.test.js b/test/js/bun/util/bun-isMainThread.test.js
index 46fecbc743..87f74d136c 100644
--- a/test/js/bun/util/bun-isMainThread.test.js
+++ b/test/js/bun/util/bun-isMainThread.test.js
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { test, expect } from "bun:test";
 import { bunEnv, bunExe } from "harness";
 
diff --git a/test/js/bun/util/inspect-error.test.js b/test/js/bun/util/inspect-error.test.js
index 56f72e4aea..31f8d79f74 100644
--- a/test/js/bun/util/inspect-error.test.js
+++ b/test/js/bun/util/inspect-error.test.js
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { test, expect } from "bun:test";
 
 test("error.cause", () => {
diff --git a/test/js/bun/util/text-loader.test.ts b/test/js/bun/util/text-loader.test.ts
index a081b6daa9..f7d3b2a284 100644
--- a/test/js/bun/util/text-loader.test.ts
+++ b/test/js/bun/util/text-loader.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { spawnSync } from "bun";
 import { describe, expect, it } from "bun:test";
 import { bunEnv, bunExe } from "harness";
diff --git a/test/js/node/buffer.test.js b/test/js/node/buffer.test.js
index a6d067acb7..ee32d73218 100644
--- a/test/js/node/buffer.test.js
+++ b/test/js/node/buffer.test.js
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { Buffer, SlowBuffer, isAscii, isUtf8 } from "buffer";
 import { describe, it, expect, beforeEach, afterEach } from "bun:test";
 import { gc } from "harness";
diff --git a/test/js/node/events/event-emitter.test.ts b/test/js/node/events/event-emitter.test.ts
index c18fea561b..687e90910e 100644
--- a/test/js/node/events/event-emitter.test.ts
+++ b/test/js/node/events/event-emitter.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { test, describe, expect } from "bun:test";
 import { sleep } from "bun";
 import { createRequire } from "module";
diff --git a/test/js/node/http/node-http.test.ts b/test/js/node/http/node-http.test.ts
index 4e84b1f6de..a8e2372211 100644
--- a/test/js/node/http/node-http.test.ts
+++ b/test/js/node/http/node-http.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 // @ts-nocheck
 import {
   createServer,
diff --git a/test/js/node/worker_threads/worker_threads.test.ts b/test/js/node/worker_threads/worker_threads.test.ts
index f00b401c5b..3fd164a889 100644
--- a/test/js/node/worker_threads/worker_threads.test.ts
+++ b/test/js/node/worker_threads/worker_threads.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import wt, {
   getEnvironmentData,
   isMainThread,
diff --git a/test/js/third_party/comlink/comlink.test.ts b/test/js/third_party/comlink/comlink.test.ts
index f3b87ea01f..77d8109504 100644
--- a/test/js/third_party/comlink/comlink.test.ts
+++ b/test/js/third_party/comlink/comlink.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { test, expect, describe } from "bun:test";
 import { join } from "path";
 import * as Comlink from "comlink";
diff --git a/test/js/third_party/resvg/bbox.test.js b/test/js/third_party/resvg/bbox.test.js
index 2932edcc7e..0c8a195781 100644
--- a/test/js/third_party/resvg/bbox.test.js
+++ b/test/js/third_party/resvg/bbox.test.js
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: code 3765269347
 import { test, expect } from "bun:test";
 import { Resvg } from "@resvg/resvg-js";
 
diff --git a/test/js/third_party/rollup-v4/rollup-v4.test.ts b/test/js/third_party/rollup-v4/rollup-v4.test.ts
index 3c8ff062f8..9aef2c0275 100644
--- a/test/js/third_party/rollup-v4/rollup-v4.test.ts
+++ b/test/js/third_party/rollup-v4/rollup-v4.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { parseAst } from "rollup/parseAst";
 
 test("it works", () => {
diff --git a/test/js/third_party/socket.io/socket.io-close.test.ts b/test/js/third_party/socket.io/socket.io-close.test.ts
index bef50f0243..feac0fbad1 100644
--- a/test/js/third_party/socket.io/socket.io-close.test.ts
+++ b/test/js/third_party/socket.io/socket.io-close.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { describe, it, expect } from "bun:test";
 import { io as ioc } from "socket.io-client";
 import { join } from "path";
diff --git a/test/js/third_party/socket.io/socket.io-connection-state-recovery.test.ts b/test/js/third_party/socket.io/socket.io-connection-state-recovery.test.ts
index 6677d29633..02a5271962 100644
--- a/test/js/third_party/socket.io/socket.io-connection-state-recovery.test.ts
+++ b/test/js/third_party/socket.io/socket.io-connection-state-recovery.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 import { describe, it, expect } from "bun:test";
 
 import { Server, Socket } from "socket.io";
diff --git a/test/js/web/workers/message-channel.test.ts b/test/js/web/workers/message-channel.test.ts
index 092d8f31b0..033343b34f 100644
--- a/test/js/web/workers/message-channel.test.ts
+++ b/test/js/web/workers/message-channel.test.ts
@@ -1,4 +1,3 @@
-// @known-failing-on-windows: 1 failing
 test("simple usage", done => {
   const channel = new MessageChannel();
   const port1 = channel.port1;