# Deleting Launcher During Participation

* First, you'll need to reinstall the Netmarble Launcher and make sure that your previous PC version pre-registration history was saved.
* If you see the \[PC Pre-registration] button on the pre-registration window, please pre-register again.


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# 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.

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```
GET https://launcher-docs.netmarble.com/faq-en/pc-preorder/3.md?ask=<question>
```

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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.