signal-desktop.exe

Signal Desktop Messaging Client

CPU Usage

N/A

Memory

N/A

Location

N/A

Publisher

N/A

Notes

This entry applies to the Windows installation path: C:\Program Files\Signal\signal-desktop.exe

Publisher

Signal Foundation

Data Storage Location

Local user profile directory under C:\Users\User\AppData\Roaming\Signal

Signature Verification

Digital signature verified; signed by Signal Foundation for signal-desktop.exe

What is signal-desktop.exe?

Signal Desktop runs as signal-desktop.exe on Windows to provide the official Graphical User Interface for the Signal messaging app. It manages your login, real-time encrypted chats, media sharing, and desktop notifications, while syncing messages with the Signal servers in the background. The Electron-based client stores data locally and leverages the Signal Protocol for end-to-end encryption.

It uses Electron for the UI, with a Node.js runtime handling app logic. It opens a secure WebSocket/TLS connection to the Signal service, encrypts messages with the Signal Protocol, and stores chat data in a local database under your user profile.

Is it Safe?

Is it a Virus?

Why is it Running?

Reasons it's running:

Maintains real-time messaging: Keeps an encrypted channel open to the Signal servers so new messages, media, and reactions arrive promptly.
Handles encryption keys locally: Stores private keys and manages the Signal Protocol handshake securely on your machine to protect conversations.
Provides UI and notifications: Renders the desktop interface and delivers system notifications for new messages and calls.
Background synchronization: Syncs message history and media in the background to keep data up to date without constant user action.
Updates and integrity checks: Applies application updates and verification to ensure security fixes are applied promptly.

Can I Disable or Remove It?

Common Problems

Common Causes & Solutions

: Ensure you are on a stable network, close unused chats, and update to the latest Signal Desktop.
: Close all Signal processes, restart the computer, clear cache at %APPDATA%\Signal, and reinstall the latest version from signal.org.
: Verify phone is online, sign out and back in, and ensure the same Signal account is used on all devices.
: Allow notifications for Signal Desktop in Windows settings and ensure focus assist is not suppressing banners.
: Back up & clear cache, move Signal data or reinstall after ensuring data is synchronized.
: Check system clock accuracy, re-enter your passphrase, and re-authenticate with your linked phone.