How to Reset an Android Emulator on Mac: Start From Scratch Without Breaking Anything

Looking for the button that wipes your Android emulator back to new, like a factory reset on a phone? In MACOS EMULATOR, there is none: no setting erases the device on its own. What takes its place goes from the lightest move to the heaviest: here is what each one wipes, what it keeps, and the one you should never make.

Before anything else: your logs to support

Want to start from scratch because something is not working? Write to support first. A reset is no guarantee of fixing the problem, and the most complete one erases exactly what makes it possible to understand it.

• The logs: in the launcher, Settings, Engine and storage section, Logs row, “View…”, then “Copy”. Uninstall erases them along with everything else.
• A performance report if the game lags, taken from the toolbar during a match.
• Both go out through the “Send a report” button in your customer area. The guide to emulator logs shows every click.

The lightest move: power off, then start again

Start with a clean shutdown. The red Power off button in the toolbar stops the device and saves a snapshot, which the next boot reloads. Nothing is erased: not your account, not your games, not your keys.

The launcher also knows how to start cold on its own. After a session that ended badly, with a crash or a forced shutdown, it does not reload the old snapshot. And if a quick boot gets stuck, it stops the device, discards the snapshot and starts cold. That boot takes longer, without erasing anything. The guide to an Android emulator not starting says how long to wait.

The rebuild: when the launcher recreates the device itself

There is only one case where the launcher erases the device and recreates it from scratch: a new version of the app ships another Android version, and the old device cannot follow it. You cannot trigger it yourself.

It announces itself before you click anything. Instead of the home screen, a screen lists what will be “ERASED” (the Google account on the device, the installed games and their data on the device) and what is “KEPT” (your subscription, your key mapping, your quality and language settings), then offers the “Rebuild the device (erases its data)” button. The guide to the emulator’s Android version walks through it step by step.

A true fresh start: Uninstall, then reinstall

For a completely new emulator, uninstall it from the launcher, then reinstall it as you did the first time:

1. 1In the launcher, open Settings (the gear icon), scroll down to the Uninstall card, click “Uninstall…”, then “Uninstall and quit”.
2. 2The launcher stops the device and the engine, erases its data without going through the Trash, moves the app to the Trash and quits.
3. 3Download the app again from your customer area, with the “Download the app” button, and drag it into Applications.
4. 4Open it: on the setup screen, “Install game engine” downloads the engine again, about 3.5 GB from Google’s servers.
5. 5The first time you click Install or Play, paste your license key, copied from your customer area.

The guide to uninstalling an Android emulator details every screen, including the case where macOS refuses the Trash.

What goes, and what stays

• Goes: the engine and the Android system, the device with the installed games and your Google session on the device, your configuration, your keys, the key saved on this Mac, and the logs.
• Stays: your license, still valid, and your Mac’s seat, recognized by its hardware. Reinstalling does not use up an activation.
• Also stays: your subscription, which Uninstall does not cancel. The app’s line can also stay in the macOS Accessibility list.
• What a game keeps on its own servers does not live on your Mac; what it keeps only on the device goes with the device. It depends on each game: check it beforehand.

What you have to redo

The Accessibility permission, if the launcher asks for it again. In Full mode, the app installs the game from Google Play, with your own Google account: sign in again from the “Google account” banner, with the “Connect” button, then reinstall your games. Your keys have to be set up again, and the settings go back to the values the launcher picks for your Mac’s memory, which also wipes out any value you raised by hand. The first boot of the new device is once again the longest: ten to twenty minutes on an 8 GB Mac, only once.

Why you never delete the folder by hand

The move that comes to mind, opening your user folder, going into Library, then Application Support, and throwing away the app’s folder, is the one we advise against. That folder holds your saved license key, your configuration, and the device with your Google session.

• The engine and its connection bridge run from that folder. Uninstall stops them before erasing; deleting it by hand does not.
• It also leaves behind what Uninstall removes on top of that: a small hidden file in your home folder and the app’s preferences in macOS.
• At the next launch, the launcher finds nothing and sends you back to the setup screen, asking for your key again: the same result as a reinstall, only messier.

Uninstall does all of that work in one click, in the right order, and without asking for a key.

Frequently asked questions