diff --git a/README.md b/README.md
index a5df0a7411ae..6827beeb2083 100644
--- a/README.md
+++ b/README.md
@@ -240,7 +240,7 @@ The installation of 3rd party libraries are well described at our [Wiki Page](ht
 This project is currently a prototype so there are many known issues. Just to mention a few:
 
 - All blueprints/scaffolds are in TypeScript only, in the future blueprints in all dialects officially supported by Angular will be available.
-- On Windows you need to run the `build` and `serve` commands with Admin permissions.
+- On Windows you need to run the `build` and `serve` commands with Admin permissions, otherwise the performance is not good.
 - The initial installation as well as `ng new` take too long because of lots of npm dependencies.
 - Many existing ember addons are not compatible with Angular apps built via angular-cli.
 - When you `ng serve` remember that the generated project has dependencies that require **Node 4 or greater**.
diff --git a/lib/broccoli/broccoli-typescript.js b/lib/broccoli/broccoli-typescript.js
index 87d395fb918a..8ab914c3ef0f 100644
--- a/lib/broccoli/broccoli-typescript.js
+++ b/lib/broccoli/broccoli-typescript.js
@@ -78,7 +78,12 @@ class BroccoliTypeScriptCompiler extends Plugin {
         this._fileRegistry[tsFilePath].outputs.forEach(absoluteFilePath => {
           const outputFilePath = absoluteFilePath.replace(this.cachePath, this.outputPath);
           fse.mkdirsSync(path.dirname(outputFilePath));
-          fs.symlinkSync(absoluteFilePath, outputFilePath);
+          try {
+            fs.symlinkSync(absoluteFilePath, outputFilePath);
+          } catch (e) {
+            const conentStr = fs.readFileSync(absoluteFilePath);
+            fs.writeFileSync(outputFilePath, conentStr);
+          }
         });
       } else {
         this._fileRegistry[tsFilePath].version = entry.mtime;
@@ -203,7 +208,12 @@ class BroccoliTypeScriptCompiler extends Plugin {
     fs.writeFileSync(absoluteFilePath, content, FS_OPTS);
 
     fse.mkdirsSync(path.dirname(outputFilePath));
-    fs.symlinkSync(absoluteFilePath, outputFilePath);
+    try {
+      fs.symlinkSync(absoluteFilePath, outputFilePath);
+    } catch (e) {
+      const conentStr = fs.readFileSync(absoluteFilePath);
+      fs.writeFileSync(outputFilePath, conentStr);
+    }
   }
 
   _addNewFileEntry(entry, checkDuplicates /* = true */) {