diff --git a/src/lint/ArcanistLintPatcher.php b/src/lint/ArcanistLintPatcher.php
--- a/src/lint/ArcanistLintPatcher.php
+++ b/src/lint/ArcanistLintPatcher.php
@@ -42,11 +42,19 @@
     // supported under OSX.
     if (Filesystem::pathExists($path)) {
       // This path may not exist if we're generating a new file.
-      execx('cp -p %s %s', $path, $lint);
+      if (phutil_is_windows()) {
+        execx('copy %s %s', $path, $lint);
+      } else {
+        execx('cp -p %s %s', $path, $lint);
+      }
     }
     Filesystem::writeFile($lint, $data);
 
-    list($err) = exec_manual('mv -f %s %s', $lint, $path);
+    if (phutil_is_windows()) {
+      list($err) = exec_manual('move /Y %s %s', $lint, $path);
+    } else {
+      list($err) = exec_manual('mv -f %s %s', $lint, $path);
+    }
     if ($err) {
       throw new Exception(
         pht(