**Reason 11:**
Windows Defender might delete or quarantine the file, so users need to restore it before running the code again.
How to restore the file from Quarantine:
1. Open **Windows Security** by pressing **Win + S**, type “Windows Security,” then open the application.
2. Go to “**Virus & threat protection**.”
3. Click “**Protection history**.”
4. Find the “**Threat quarantined**” entry related to `FiinQuant\__init__.py`.
5. Click “**Actions**” → Select “**Restore**.”
🔹 **Note:** If Windows Defender automatically deletes the file, you need to reinstall the FiinQuant library after restoring it.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.fiinquant.vn/fiinquant-en/python-guidelines/common-errors.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.