# Performance FAQs

## Crash issues

### How do I launch JaxCore after it crashing?

1. Launch Rainmeter using search
2. Launch JaxCore

### JaxCore crashes on startup

[Reinstall](https://wiki.jaxcore.app/getting-started/jaxcore-faqs#reinstallation)

### JaxCore crashes randomly?

1. Launch Rainmeter if it already crashed
2. Open JaxCore
3. Go to your modules, and set **Media method** (Music settings) to **Auto** for all
4. Setup your media players for the Auto method following [this guide](https://wiki.jaxcore.app/getting-started/media-player-faqs#auto-method)

If issue persist, [Reinstall](https://wiki.jaxcore.app/getting-started/jaxcore-faqs#reinstallation)

### JaxCore crashes constantly when editing settings

*Unfortunately, there are no direct, magical solutions to this issue, but you can try the following solutions:*

* Make sure JaxCore is up to date, check in core settings
* Turn on hardware acceleration in core settings
* Make sure you met the [requirements](https://wiki.jaxcore.app/installation#prerequisites) 
* [Reinstall](https://wiki.jaxcore.app/getting-started/jaxcore-faqs#reinstallation)

## Performance issues

### Modules / JaxCore freezing & making mouse jittery and unresponsive

This issue mainly happens when a part of MetroUI (e.g. Default start menu / taskbar calendar) is active, preventing JaxCore from taking focus from these UI features. It might also happen when simply trying to load core using a desktop icon.

To fix this issue, load JaxCore using **Right click --> Configure in core --> Home** instead of using the Taskbar icon, and simply try to avoid launching core modules when a part of metro UI is active. When that happens, simply click on the desktop.