Quick Answer
resilio-sync-updater is safe. It's the official update component for the Resilio Sync desktop client that checks for, downloads, and applies new versions in the background.
Is it a Virus?
✔ NO - Safe
Should be located in C:\Program Files\Resilio Sync\Resilio-Sync-Updater.exe
Warning
Updater runs in background
Often launches to check for and install updates without the main GUI open
Can I Disable?
✔ YES
You can disable startup or background update checks via the Resilio Sync settings or Windows startup options
What is Resilio-Sync-Updater.exe?
resilio-sync-updater is the dedicated updater for the Resilio Sync desktop client. It runs in the background to check for new releases, download patches, and apply updates without requiring manual intervention, helping keep your sync operations secure and current.
This updater runs as a separate process and communicates with Resilio servers to fetch the latest build metadata, verify integrity, and launch the installer while the main UI remains responsive.
Quick Fact: The updater is designed to minimize impact on active sync tasks by operating in a separate process.
Types of Resilio Sync Processes
- Updater Process: Resilio-Sync-Updater.exe handles version checks and downloads for Resilio Sync.
- Background Service: Runs scheduled update checks and downloads in the background.
- Downloader Component: Fetches update packages from Resilio servers.
- Installer Helper: Applies updates and restarts affected components as needed.
- Telemetry/Logging: Optional data collection to improve update delivery and reliability.
- Update Recovery: Rollbacks and recovery tasks in case of update failures.
Is resilio-sync-updater Safe?
Yes, resilio-sync-updater is safe when it's the legitimate updater from Resilio Inc. downloaded from the official site or installed with Resilio Sync.
Is resilio-sync-updater a Virus or Malware?
The real updater is NOT a virus. Malware may imitate updater names, so verify the file path and signature.
How to Tell if resilio-sync-updater is Legitimate or Malware
- File Location:: Must be in
C:\Program Files\Resilio Sync\Resilio-Sync-Updater.exe or C:\Program Files (x86)\Resilio Sync\Resilio-Sync-Updater.exe. Any updater.exe elsewhere is suspicious.
- Digital Signature:: Right-click the updater file in File Explorer → Properties → Digital Signatures. Should show signer "Resilio, Inc." with a valid certificate.
- Resource Usage:: Normal usage is low CPU (1-5%) and modest memory. Excessive resource usage when nothing is updating is suspicious.
- Behavior:: Updater should run only as needed for updates. Constant background activity without Resilio Sync installed or running is a red flag.
Red Flags: If resilio-sync-updater.exe is located in unusual folders (like Temp or AppData), runs when Resilio Sync isn’t open, lacks a digital signature, or uses constant network bandwidth, scan with security software and verify the vendor.
Why Is resilio-sync-updater Running on My PC?
resilio-sync-updater runs to keep the Resilio Sync client current with security patches and feature updates. It can run when the app is installed, when Windows starts, or on a configured update schedule.
Reasons it's running:
- Active Resilio Sync Use: The main Resilio Sync client is installed and may be syncing, triggering update checks.
- Background Update Checks: Updater checks for new versions even if the GUI is closed to ensure timely patches.
- Startup Program: Updater may be configured to start with Windows to apply updates at boot.
- Scheduled Maintenance: Automatic maintenance tasks can trigger the updater at predefined times.
- Manual Update Trigger: User-initiated update requests or update prompts can cause the updater to run.
Can I Disable or Remove resilio-sync-updater?
Yes, you can disable the updater. You can control automatic updates through the Resilio Sync settings or Windows startup options.
How to Stop resilio-sync-updater
- End Update Process: Open Task Manager and end Resilio-Sync-Updater.exe
- Disable Startup: Task Manager → Startup tab → Disable Resilio Sync Updater
- Disable Background Checks: Resilio Sync settings → Preferences → Updates → Disable automatic updates
- Disable Related Services: Check for any Resilio-related services in Services.msc and disable updater-related services if present
- Manual Update Only: Use the Resilio Sync app to manually trigger updates when you choose
How to Uninstall Resilio Sync
- ✔ Windows Settings → Apps → Apps & Features → Resilio Sync → Uninstall
- ✔ Control Panel → Programs → Programs and Features → Resilio Sync → Uninstall
- ✔ Consider alternative sync tools if you no longer need Resilio Sync
Common Problems: Update Failures or Resource Use
If resilio-sync-updater is causing issues like failed updates or high resource usage, try the following practical steps.
Common Causes & Solutions
- Outdated Updater Version: Ensure the updater itself is current by triggering a manual update from within Resilio Sync or reinstall the latest Resilio Sync package.
- Network or Firewall Blocking Updates: Check firewall/antivirus settings and allow access for Resilio Sync updater and related executables.
- Antivirus Interference: Whitelisted updater files in your antivirus and scanned for false positives.
- Updater Stuck in Loop: Repair the installation or perform a clean reinstall of Resilio Sync.
- High CPU During Update Check: Limit check frequency in settings, and ensure no conflicting extensions or apps are driving frequent network activity.
- Corrupted Update Cache: Clear updater cache at <code>C:\Users\<User>\AppData\Local\Resilio Sync\Update</code> and retry.
Quick Fixes:
1. Quick Fixes:
2. 1. Open Task Manager and identify high-usage updater processes
3. Trigger a manual update from within Resilio Sync or update from the official site
4. Whitelist updater in your antivirus and firewall
5. Clear update cache in AppData
6. Restart the computer and recheck update status
Frequently Asked Questions
Is resilio-sync-updater a virus?
No, the legitimate updater from Resilio Inc. is not a virus. Verify the path C:\Program Files\Resilio Sync\Resilio-Sync-Updater.exe and a valid signature from Resilio Inc.
What does resilio-sync-updater do?
It checks for, downloads, and applies updates to the Resilio Sync desktop client, all while minimizing impact on active sync tasks.
Can I disable the updater?
Yes. You can disable startup or background updates via the Resilio Sync settings or Windows startup options.
Where is the updater installed?
Typically at C:\Program Files\Resilio Sync\Resilio-Sync-Updater.exe (or C:\Program Files (x86)\Resilio Sync\Resilio-Sync-Updater.exe).
How do I update Resilio Sync manually?
Open Resilio Sync and navigate to Help or Settings → Check for Updates, or download the latest installer from the official Resilio website and run it.
Why does the updater start when I’m not using Resilio Sync?
If you have automatic updates enabled or Windows startup configured, the updater may run to keep the application secure and current even when the GUI isn’t open.