> ## Documentation Index
> Fetch the complete documentation index at: https://docs.opai.today/llms.txt
> Use this file to discover all available pages before exploring further.

# FAQ

> Frequently Asked Questions about the client

## 1. How do I launch the client?

Simply run the `.exe` file.

For JAR/JSON launcher versions, please follow the [Discord tutorial](https://discord.com/channels/1273496587187912774/1350095901091303476).\
Make sure to use [Zulu 21](https://cdn.azul.com/zulu/bin/zulu21.44.17-ca-fx-jdk21.0.8-win_x64.zip) to launch the client.

## 2. The client does not start

Please troubleshoot step by step. If none of these solve the issue, open a ticket on Discord to contact support.

* Sync your system time
* Delete `.minecraft\options.txt`
* Delete `%appdata%\Opai\Alts.json`
* Delete `%appdata%\Opai\extensions`
* Delete the entire `%appdata%\Opai` folder and `%appdata%\.opai` folder

<img src="https://mintcdn.com/opai/v5NV4tR0-Jbw9Wj5/images/LjhQmde.gif?s=70cbf41064fea9eff8fbddf14533b3e3" alt="sync" width="1200" height="932" data-path="images/LjhQmde.gif" />

## 3. Which operating systems are supported?

Currently, only **Windows 10/11** is supported.

There is no support for Unix-like systems, and it is unlikely to be added in the future.