Razer Synapse Won’t Open/ Failed to Start: 6 Simple Fixes

by Matthew Adams
Matthew Adams
Matthew Adams
Windows & Software Expert
Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things... read more
Affiliate Disclosure
  • In case Razer Synapse is not opening, reinstalling the necessary drivers should help you.
  • You can also fix this issue if you safely remove the Razer software and then install it again.
  • To prevent this issue, it's advised to completely close all related processes and start the software again.
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Razer Synapse is hardware configuration software with which its users can configure Razer peripherals, but many users reported that Razer Synapse isn’t opening.

According to users, they experienced unexpected errors in Razer Synapse among other issues, such as:

  • Razer Synapse not loading profile/not switching profiles: This can happen if your profile is corrupted. The best course of action would be to to recreate the damaged profile.
  • Razer Synapse not loading opening on startup: The issue is most likely caused by your settings, so be sure to adjust them.
  • Razer Synapse not working in-game: It’s possible that the game doesn’t fully support Synapse. Updating both the game and software should help.
  • Razer Synapse not working after update: A bad update can cause this problem, so reinstalling the software should help.
  • Razer Synapse not downloading from website: If this happens, check your antivirus settings and make sure the download isn’t blocked.

These issues aren’t exclusive to Windows 10, and many reported that Razer Synapse failed to install in Windows 11 too.

And in today’s article, we’re going to address these problems once and for all, so read on!

What can I do if Razer Synapse is not opening?

  1. Reinstall Razer Synapse and Razer device drivers
  2. Don’t install Razer Surround with Synapse
  3. Install the latest Microsoft .NET Framework
  4. Turn off third-party antivirus/ Windows Defender Firewall
  5. Close Razer processes
  6. Check for Windows updates

1. Reinstall Razer Synapse and Razer device drivers

  1. Right-click the Start button, and select the Device Manager to open the window in the snapshot directly below.
    device manager windows 10 razer synapse not working
  2. Double-click the Mice and other pointing devices, Keyboards and Human Interface Devices categories on the Device Manager window.
    keyboard device manager razer synapse not opening
  3. Right-click all the Razer devices listed in those categories, and select the Uninstall device options on their context menus.
  4. Select the Delete the driver software for this device option on the dialog box window that pops up for each Razer device.
  5. Press the Uninstall button to confirm.
    uninstall mouse driver razer synapse won't open
  6. Unplug all the connected Razer devices for a few minutes.
  7. Then restart your desktop or laptop.
  8. Plug the Razer devices back in after restarting Windows. Windows will automatically reinstall the drivers for the devices.
  9. Download the latest Razer Synapse software. Then reinstall Razer Synapse with its setup wizard.

If Synapse 3 or X won’t open on your PC, the issue might be related to Razer device drivers. Thus, reinstalling both Razer device drivers and the Synapse software can fix the problem.

Make sure you have the most up-to-date versions of your drivers. There are third-party programs that can do this for you automatically, such as DriverFix, which can detect and repair any outdated drivers.

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Note that you should thoroughly uninstall Synapse with a third-party uninstaller for your Windows 10 PC.

2. Don’t install Razer Surround with Synapse

  1. Open Run by pressing the Windows key + R.
  2. Enter appwiz.cpl in Run’s text box, and click OK to open the window shown directly below.
  3. Select Razer Surround, and click Uninstall to remove it from Windows.
    remove razer software razer synapse failed to start

In case the software can’t start because Razer Central Service is missing, reinstalling the software should be able to help you.

Also, download Razer Synapse from the official website and make sure that you select the latest version in order to avoid any compatibility issues.

3. Install the latest Microsoft .NET Framework

NET Framework is a system requirement for Razer Synapse, and if NET Framework isn’t installed, Razer Synapse 3 might not be opening.

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If an older .NET Framework version is already installed, you might need to install the latest .NET Framework for Synapse 3.0.

Download the setup wizard for the latest .NET Framework version. Then you can open the installer to add the latest .NET Framework to Windows.

For more information visit our how to download .NET Framework guide.

4. Turn off third-party antivirus/ Windows Defender Firewall

  1. Open Run by pressing the Windows key + R keyboard shortcut.
  2. Enter firewall.cpl in Run, and press the OK button. That will open the Windows Defender Firewall Control Panel applet.
  3. Click Turn Windows Defender Firewall on or off.
  4. Then select both the Turn off Windows Defender Firewall radio buttons, and click the OK button.

Third-party antivirus software and the Windows Defender Firewall can also cause Razer Synapse freezing and other issues. So turning third-party antivirus utilities and the Windows Defender Firewall off might also fix Razer Synapse.

You can temporarily disable most third-party antivirus utilities by selecting disable options on their system tray icon context menus. Follow the guidelines above to turn off the Windows Defender Firewall.

Alternatively, you can consider using an antivirus with firewall to avoid these types of issues.

5. Close Razer processes

  1. Right-click the Taskbar, and select Task Manager.
  2. Then select any Razer processes listed under background processes, and click End task to close them.
    task manager razer synapse not working
  3. Thereafter, close the Task Manager and run Synapse as an administrator.

Some Synapse users have confirmed that closing Razer processes before opening Synapse 3.0 can help if Razer Synapse is not working. To do that, just follow the above steps.

6. Check for Windows Updates

  1. Open the Cortana app by clicking the Type here to search button on Windows 10’s taskbar.
  2. Enter the keyword update in Cortana’s search box. Then click Check for updates.
  3. There you can press the Check for updates button to see if there are any available updates.
  4. Restart the OS after updating Windows.

Windows updates might also help if Razer Synapse won’t open. The updates are usually automatic unless you’ve adjusted Windows Update settings, but you might still miss a few.

What can I do if Razer Synapse won’t open on Windows 11?

If you’re having problems with Razer Synapse on the latest version of Windows, you’ll be pleased to hear that all the solutions from this guide can be applied to Windows 11.

The two operating systems share many similarities, so the solutions are universal and they will work on both systems, with some minor alternations.

Those are some of the resolutions that will probably fix Razer Synapse when it doesn’t open. This isn’t the only issue, and many reported that Razer Synapse won’t change lighting, but there’s a way to fix that.

If you have any other solutions for Razer Synapse, feel free to share them below.

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