Uninstall and Data

Application files, user data, and the game directory are separate. Decide which part to remove before choosing the steps.

Uninstall the launcher

Removing the application preserves separate game files. User data handling depends on the package below.

Windows installer

Uninstall through Windows Settings → Apps or the Start menu. Interactive removal optionally deletes current-user data, unchecked by default. Silent uninstall preserves user data.

Windows portable build

Exit, then delete the whole extracted application directory. There is no separate registry configuration; settings and logs remain in the system user data directory.

macOS and Linux

Delete the bundle, AppImage, or extracted directory. Use the package manager for DEB, RPM, and Arch packages. User data and game files are not removed with the package.

User data directory

Platform	Default location
Windows	%LOCALAPPDATA%\Cafe Launcher
macOS	~/Library/Application Support/Cafe Launcher
Linux	$XDG_DATA_HOME/cafe-launcher, or ~/.local/share/cafe-launcher without a valid absolute XDG path

Use Settings → Advanced → Open Data Directory to confirm the path. Settings, logs, caches, recovery records, and managed compatibility environments share it.

Linux upgrades attempt to migrate the old Cafe Launcher directory in the same data home. Existing destination entries and failed moves leave old files in place. Inspect the old directory before deleting it.

Data files

File or directory	Purpose	Can it be deleted?
settings.json	Language, theme, networking, paths, and other settings	Yes; defaults are restored on next launch
download_state.json	Resumable download task state	Yes; saved resume progress is lost
unified.log, unified_*.log	Current and rotated diagnostic logs	Yes; diagnostic history is lost
shown_notices.json	Notices already displayed	Yes; some notices may appear again
image-cache/	Remote backgrounds, banners, release-note images, and other cached images	Yes; downloaded again when needed
CrashReports/	Local crash snapshots	Yes; crash diagnostics are lost
update/	Staged launcher update packages and checksums	When no update is in progress; downloads will be needed again
compatibility/	Launcher-managed Wine / Proton Prefixes	Deletes their login state and compatibility data; prefer the optional cleanup in game uninstall
runner_output.log, compatibility_environment.json, prefix_metadata.json	Latest runner output, environment precheck, and Prefix metadata	Yes; these diagnostics are lost
log-exports/	Exported log ZIP files	Yes

WARNING

Exit Cafe Launcher before deleting its data. Keep or export logs first if you still need help with a problem.

Game directory

Normally YostarGames/BlueArchive_JP under the selected base directory. manifest.json records the manifest; game-launcher-config.json records version and launch target. Other files belong to the game and its resources. Avoid simultaneous operations with the official launcher and do not move the directory during download, repair, or removal.

Uninstall the game

Close the game, choose Uninstall under Settings → Game or the game menu, and review the path, size, and additional options.

WARNING

The whole game directory is removed, including game-downloaded resources and files you added, along with installation state, recovery records, and desktop shortcuts. Back up anything needed first.

Managed Wine / Proton environments remain unless additional cleanup is selected. Custom Prefixes outside the game directory and selected managed subtree are preserved. Scanning, deletion progress, and results include paths that could not be removed. Keep the launcher open until completion.

Remove everything

1. Uninstall the game in the launcher, deciding whether to remove its managed compatibility environment.
2. Uninstall or delete the application.
3. Exit related processes, confirm the path, then remove user data.
4. Separately remove exported ZIPs, external custom Prefixes, or original background files if desired.

Removing user data also removes managed compatibility environments and their login state. Removing a local UID does not delete server preferences. Contact maintainers as described in the privacy policy (Chinese).