# Install Muse4AI

Install Muse4AI with the Windows EXE or ZIP package, handle SmartScreen safely, and keep your data when updating.

Source: https://muse4ai.lovable.app/docs/install · Updated 2026-11-02

## Before you start

- Use Windows 10 or 11, 64-bit.
- Have the Muse4AI EXE installer or ZIP package from a source you trust.
- If updating, right-click the app's tray icon and choose Quit first. Closing the window with X only minimizes it to the tray.

## 1. Choose EXE or ZIP

For the simplest route, open the EXE installer, choose English or Tiếng Việt, and follow its instructions. For ZIP installation, extract the whole package into a folder first.

## 2. Check any Windows warning

The app is not code-signed, so SmartScreen may warn you. Only if you trust the package, choose **More info → Run anyway**. Do not continue with a package whose checksum check fails.

## 3. Run PowerShell if using ZIP

Skip this step if you used the EXE. In the extracted folder, type `powershell` in File Explorer's address bar and press Enter. Run the command below. It does not change the machine's saved execution policy.

```powershell
powershell -ExecutionPolicy Bypass -File .\install.ps1
```

## 4. Check the install and data locations

The app installs to `%LOCALAPPDATA%\Programs\Muse4AI`. Its data stays in `%APPDATA%\MuseStudio` when you install an update, including accounts, settings, queue, and library records. Downloaded results use the library folder you choose.

## 5. Continue with first-run setup

The installer opens the app. If this is your first installation, follow the welcome setup in [First open](https://muse4ai.lovable.app/docs/first-open).

## Check it worked

Muse4AI opens from its shortcut. A first installation shows the welcome setup; an update keeps your existing data.

## If it doesn't work

### The installer says the app is still running. What now?

Quit from the tray icon, not the window's X button, then run the installer again.

### The package does not match its checksums. Should I continue?

No. The package may be damaged or modified. Download a fresh copy from a trusted source.

### The new version will not open. What can I do?

See [Updates and backups](https://muse4ai.lovable.app/docs/updates-and-backups) before rolling back. Older versions may not read data upgraded by a newer version.