> For the complete documentation index, see [llms.txt](https://nobraintools.gitbook.io/maya-groomers-tool/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nobraintools.gitbook.io/maya-groomers-tool/getting-started/problem-errors/dll-load-failed-pyarmor_runtime.md).

# DLL load failed pyarmor\_runtime

```
DLL load failed while importing pyarmor_runtime: 
An Application Control policy has blocked this file.
```

#### Likely Cause:

* Smart App Control is a friendly UI over **Windows Defender Application Control (WDAC)** and will block unsigned or “unknown” binaries/DLLs with exactly this message.

***

#### **Solution:**

#### Check Windows Smart App Control

On Windows 11 this is the common culprit now:

1. Open **Settings → Privacy & security → Windows Security**
2. Click **App & browser control**
3. Look for **Smart App Control**
   * If it’s **On** or **Evaluation**, have them switch it to **Off** and reboot.
4. Launch Maya and Groomer’s Tool again.

<figure><img src="/files/tHQZwgL4xHqRUuGPlkjR" alt=""><figcaption></figcaption></figure>