Quick Answer
razer-sync is safe. It's the Razer Synapse synchronization service that keeps your device profiles, color schemes, and settings synced across your Razer hardware and cloud profiles.
Is it a Virus?
✔ NO - Safe
Must be in C:\Program Files\Razer\Synapse3\RazSync.exe or C:\Program Files (x86)\Razer\Synapse3\RazSync.exe
Warning
Multiple Razersync instances can appear during normal operation
Each device profile or cloud sync can spawn Razersync processes
Can I Disable?
✔ YES
Close Synapse or disable startup via Task Manager or Synapse settings
What is Razersync.exe?
razer-sync is the background synchronization service for Razer Synapse that coordinates device profiles, color schemes, and cloud settings across connected Razer hardware. It runs as a lightweight process to apply user configurations consistently across devices, even when the Synapse UI isn’t active.
Razer Sync operates as a background service that communicates with Razers servers and local device drivers. It handles profile loading, firmware checks, and cloud sync, typically running in low memory and CPU, and isolating tasks to keep Synapse stable.
Quick Fact: Razer introduced the synchronization service with Synapse to ensure per-device profiles and lighting schemes remain consistent across multiple rigs.
Types of Razersync Processes
- Core Sync Service: Main service coordinating profile sync and cloud data
- Device Bridging: Manages communication with connected Razer devices (mouse, keyboard, headset)
- Profile Loader: Loads per-device or per-game profiles from the cloud or locally
- Firmware Updater: Checks and applies firmware updates for supported devices
- Background Task Runner: Performs periodic maintenance tasks and data caching
Is razer-sync Safe?
Yes, razer-sync is safe when obtained from official sources (razer.com or installed with Synapse) and digitally signed.
Is razer-sync a Virus or Malware?
The legitimate razer-sync is not a virus. Malware may mimic names; verify signature and file location.
How to Tell if razer-sync is Legitimate or Malware
- File Location:: Must be in C:\Program Files\Razer\Synapse3\RazSync.exe or C:\Program Files (x86)\Razer\Synapse3\RazSync.exe. Any RazSync.exe elsewhere is suspicious.
- Digital Signature:: Right-click RazSync.exe → Properties → Digital Signatures. Should show "Razer USA Ltd" or "Razer Inc.".
- Resource Usage:: Normal usage is 1-6% CPU per process, 50-200 MB total memory. Extremely high usage when Synapse UI is closed is suspicious.
- Behavior:: Razersync should run when Synapse is active. If it starts without Synapse or without user action, investigate.
Red Flags: If Razersync.exe is located in unusual folders (Temp, AppData, System32), runs when Synapse isn't open, lacks a valid signature, or uses excessive resources constantly, scan with antivirus software immediately. Be wary of similarly-named files like "razersync64.exe" or "razer-sync.exe" from untrusted sources.
Why Is razer-sync Running on My PC?
razer-sync runs to apply and synchronize Razer profiles, firmware, and lighting schemes. It may run when Synapse is open, or in the background to keep settings ready for quick device response.
Reasons it's running:
- Active Synapse Use: You're actively using Razer Synapse and it needs to apply and sync your current profiles to devices.
- Background Cloud Sync: Razer Cloud data for profiles and lighting schemes is being synchronized in the background.
- New Device Connected: Connecting a new Razer device triggers Razersync to initialize drivers and load defaults.
- Firmware and Driver Checks: Razersync performs periodic firmware and driver checks to ensure devices are up to date.
- Startup and Background Mode: Synapse or Razersync is configured to launch at Windows startup or continue running in the background for quick access.
Can I Disable or Remove razer-sync?
Yes, you can disable razer-sync. It's safe to close Synapse when not in use, and you can uninstall or disable it if you prefer a different setup.
How to Stop razer-sync
- End Razersync Process: Open Task Manager (Ctrl+Shift+Esc), find Razersync.exe, right-click, and End Task
- Disable Startup: Task Manager → Startup tab → Disable Razer Synapse or Razersync entry
- Prevent Background Run: In Razer Synapse Settings → Performance → Disable 'Run in background when closed' (or equivalent option)
- Uninstall Synapse: Windows Settings → Apps → Apps & Features → Razer Synapse → Uninstall
- Reinstall Without Razersync: If you still want device support, install Synapse again and choose minimal components or customize features during install
How to Uninstall Razersync-Linked Components
- ✔ Windows Settings → Apps → Apps & Features → Razer Synapse → Uninstall
- ✔ During uninstall, deselect optional components that include background sync services
- ✔ Restart your PC
Common Problems: High CPU, Memory, or Connectivity
If razer-sync is consuming excessive resources or devices aren’t syncing correctly:
Common Causes & Solutions
- Background Sync Overload: Limit cloud sync by disabling non-essential cloud features in Synapse settings
- Too Many Devices or Profiles: Reduce active profiles or disable synchronization for unused devices
- Outdated Synapse Version: Update Razer Synapse to the latest version via Settings → Updates
- Driver/Firmware Mismatch: Reinstall drivers for affected devices from Razer Support and update firmware
- Corrupted Settings: Reset Synapse settings or reinstall the application to clear corrupted caches
- Conflicting Software: Disable other overlay or sync utilities that may conflict with Razersync
Quick Fixes:
1. Quick Fixes:
2. 1. Open Task Manager and identify Razersync-related processes
3. Restart Razer Synapse and reconnect devices
4. Update Synapse to the latest version
5. Disable non-essential cloud sync features
6. If problems persist, perform a clean reinstall of Razer Synapse
Frequently Asked Questions
Is razer-sync safe?
Yes. The razer-sync component is a legitimate part of Razer Synapse, provided you installed it from official sources and it shows a valid signature from Razer Inc.
Where is razer-sync located on Windows?
Typically C:\Program Files\Razer\Synapse3\RazSync.exe or C:\Program Files (x86)\Razer\Synapse3\RazSync.exe, depending on your installation.
Can I disable razer-sync without uninstalling Synapse?
Yes. You can end the Razersync process and disable startup, and in Synapse settings turn off background synchronization.
How do I update razer-sync?
Update Razer Synapse through the official app: Settings → Updates, or reinstall Synapse to ensure Razersync components are current.
Why does razer-sync run at startup?
It’s configured to launch at Windows startup to ensure device profiles and lighting are ready when you log in, reducing wait times for syncing.
Why are there multiple razer-sync processes?
Razorsync uses multiple sub-processes to manage device communication, cloud sync, and profile loading separately for stability and responsiveness.