macOS Download Troubleshooting

If macOS shows "PW Tray is damaged and cannot be opened", this is usually Gatekeeper quarantine, not a corrupted file. Follow the steps below.

macOS warning dialog saying PW Tray is damaged and cannot be opened.

Typical Gatekeeper warning shown for quarantined downloads.

Step 1: Remove quarantine from your downloaded file

Run this command on the downloaded .dmg:

cd ~/Downloads
xattr -dr com.apple.quarantine "PWTray_0.4.1_aarch64.dmg"

Step 2: Open DMG and move app to Applications

open ~/Downloads/"PWTray_0.4.1_aarch64.dmg"

Drag PW Tray.app to /Applications.

PW Tray installer window with the app icon and the Applications folder shortcut.

Drag and drop PW Tray.app into Applications.

Step 3: If still blocked, remove quarantine from app bundle

xattr -dr com.apple.quarantine "/Applications/PW Tray.app"
open "/Applications/PW Tray.app"

Why this happens

Browser downloads are commonly marked with macOS quarantine metadata. This guide removes only that metadata so the app can be opened normally.

Need Bitwarden setup help? Open How to Set Up Bitwarden.