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Razer Synapse won’t open/ failed to start [Full Fix]

  •  Razer Synapse is a vital piece of software that allows users to configure Razer peripherals, but it occasionally fails.
  • Many Windows users have expressed dissatisfaction with Razer Synapse's inability to open. Try reinstalling the system drivers if you're one of them.
  • If Razer Synapse won't start, make sure you follow the steps below to reinstall it safely.
  • If Razer Synapse doesn't start, you'll need to close Razer processes using the instructions in this post, so keep reading!

Razer Synapse won’t open/ failed to start [Full Fix]


razer synapse failed to start

If your Razer Synapse won't open, here's how to repair it.


Razer Synapse is a hardware configuration program that allows users to set up Razer peripherals, but several users have confirmed that it isn't working.


Users have reported unexpected errors in Razer Synapse, among other issues, and in today's post, we'll fix these issues once and for all, so keep reading!


What do I do if Razer Synapse refuses to open?

  1. Razer Synapse and Razer system drivers should be reinstalled.
  2. Installing Razer Surround with Synapse is not recommended.
  3. Install the most recent version of the Microsoft.NET Framework.
  4. Switch off some third-party antivirus software as well as Windows Defender Firewall.
  5. Razer processes should be kept at a minimum.
  6. Make sure Windows is up to date.


Razer Synapse and Razer system drivers should be reinstalled.

  • To open the Device Manager window, right-click the Start button and choose Device Manager from the menu.

Razer Synapse won’t open/ failed to start [Full Fix]


  • On the System Manager pane, double-click the Mice and other pointing devices, Keyboards, and Human Interface Devices sections.

Razer Synapse won’t open/ failed to start [Full Fix]


  • Select Uninstall device options from the context menus of all Razer devices specified in those categories by right-clicking them.

  • On the dialogue box window that pops up for each Razer unit, select the Delete the driver program for this device option.

  • To confirm, press the Uninstall button.

Razer Synapse won’t open/ failed to start [Full Fix]


  • For a few minutes, unplug all attached Razer computers.

  • After that, restart your computer or laptop.


  • After restarting Windows, reconnect the Razer modules. The drivers for the devices will be reinstalled automatically by Windows.


razer synapse won't open

If Razer Synapse won't start on your computer, it may be a problem with Razer system drivers. The problem can be resolved by reinstalling both the Razer system drivers and the Synapse program.


To ensure there are no remaining residual files, use a third-party uninstaller like IObit Uninstaller 10 Pro to fully uninstall Synapse.


IObit Uninstaller 10 Pro

Only IObit Uninstaller 10 Pro can safely uninstall any program while ensuring that no residual files are left behind!


Download Razer Synapse


Razer Synapse won’t open/ failed to start [Full Fix]

Don’t install Razer Surround with Synapse

  • By pressing the Windows key + R, you can access Run.


  • To open the window immediately below, type appwiz.Cpl in to the Run text box and click OK.

Razer Synapse won’t open/ failed to start [Full Fix]

  • To uninstall Razer Surround from Windows, select it and press Uninstall.


Razer Synapse 3 failed to start 2021

The Razer Surround module could be the cause of your Razer Synapse freezing or not opening. As a result, removing or disabling the module might help the program work again.


When you log in to your Razer account after reinstalling Synapse as mentioned above, you can cancel the installation of Razer Surround.


Razer synapse 3 system error

A function update will appear when you connect Synapse to the Internet, which you can cancel. After the setup, click the Razer Surround notification and choose to cancel the installation.


After that, restart Windows and update Synapse. If Razer Surround is already mounted, you can uninstall it by following the steps outlined above.


Also read: How to Fix Razer Synapse Failed to Start?

Install the latest Microsoft .NET Framework

Microsoft NET framework


The NET Framework is a device prerequisite for Razer Synapse, and if you don't have it enabled, Razer Synapse 3 might not function. You may need to update the latest.NET Framework for Synapse 3.0 if an older.NET Framework version is already installed.


Install the latest.NET Framework version using the setup wizard. After that, you can run the installer to install the most recent.NET Framework on Windows.

Turn off third-party antivirus/ Windows Defender Firewall

  • Using the Windows Key + R keyboard shortcut, open Run.


  • Click the OK button after typing firewall. CPL in Run. The Windows Defender Firewall Control Panel applet will appear, as shown below.

razer synapse not opening

  • To open the options shown directly below, click Switch Windows Defender Firewall on or off.

razer synapse not opening

  • Then press the OK button after selecting both the Turn off Windows Defender Firewall radio buttons.


Razer Synapse freezing and other problems can also be caused by third-party antivirus software and the Windows Defender Firewall. As a result, disabling third-party antivirus software and the Windows Defender Firewall can also help Razer Synapse.


Many third-party antivirus utilities have disabled options on their device tray icon context menus that you can use to temporarily disable them. To turn off the Windows Defender Firewall, follow the steps outlined above.

Close Razer processes

  • Select Task Manager by right-clicking the Taskbar.


  • Then, under background processes, pick any Razer processes and press End task to terminate them.

Razer Synapse won’t open/ failed to start [Full Fix]

  • Close Task Manager and run Synapse as an administrator after that.


If Razer Synapse isn't working, some Synapse users have reported that closing Razer processes before opening Synapse 3.0 can help. Simply follow the steps outlined above to accomplish this.


Razer update

Check for Windows Updates

  • Click the Type here to search button on the Windows 10 taskbar to launch the Cortana app.

  • In Cortana's search box, type the word update.

  • Then, in Cortana, press Check for notifications to open the window shown below.

Razer Synapse won’t open/ failed to start [Full Fix]

  • To see if there are any available updates, press the Check for updates button.

  • After upgrading Windows, restart the computer.


razer synapse failed to start

If Razer Synapse won't open, Windows updates may be able to support it. Unless you've changed your Windows Update settings, the updates are normally automatic, but you may miss a few.


These are some of the options for resolving the problem with Razer Synapse, not opening. If you have any other Razer Synapse fixes, please post them in the comments section.


Frequently Asked Questions (FAQs)

Why is my Razer Synapse not opening?


Razer Synapse 2.0 may crash unexpectedly, fail to launch properly or cease working altogether. This could be due to administrator limitations or corrupted or missing Synapse 2.0 files. It's also possible that your firewall is blocking Razer Synapse 2.0.


How do I fix my Razer Synapse?


How can I fix my Razer Synapse 3?

  1. Look for Razer Synapse 3, right-click it, and choose "Modify."
  2. A pop-up box for user account control will display; select "Yes." Select "REPAIR" from the drop-down menu.
  3. Allow for the installation to finish.
  4. Restart your computer. Your Synapse 3 programme should now be repaired successfully.


How do I make Razer Synapse 2 not open on startup?


To access the option, right-click the green Razer icon in your notification area and select "Settings." It's possible that the icon is obscured by the up arrow to the left of your system tray icons. Under Splash Screen, uncheck the “Show on Startup” option. When you sign in to your computer, the splash screen will not appear.


Is Razer Synapse free?


Razer Synapse 2 is a simple utility tool for configuring Razer items such as keyboards, mice, speakers, and headsets. Users can personalize the keys and buttons of any compatible device with the aid of this free program to meet their specific gaming and computing needs.


Does Razer Synapse have to be open?


Most key binds, macros, and multimedia controls can be stored in the mouse's memory. Many functions of Synapse cannot be accomplished only by the mouse and require Synapse to be operating.


How good is Razer cortex?


Razer Cortex is an excellent free application that can help you boost game speed, especially if you're playing games that require a lot of RAM. It's not a good choice for the office because of its gaming focus and lack of customizability, but it's one of the greatest system optimization tools for gaming PCs.


Can I use Razer Synapse without Razer mouse?


You won't need any razer items for this, and it should be rather simple. Make sure you have Synapse 3 installed (beta version).


Can you control Razer RGB without synapse?


Onboard fast lighting effects on Razer keyboards allow you to switch between different lighting effects without having to run Synapse 3 in the background. The illumination on your keyboard can be changed by holding down the "FN" modifier key, pressing the control key, then pressing any of the listed number keys.


Is Razer Cortex a virus?


Is Razer Cortex infected with a virus? Razer has not been identified to have any virus or malware in numerous security tests. This implies the program isn't a virus and won't infect your computer with any viruses, malware, spyware, trojans, or other security threats.


Is Razer Cortex harmful?


The short answer to this question is "Yes." Razer Cortex is completely safe to use on your PC. 


It's an optimization program that seeks to boost your system's overall performance.  This guarantees that you get the highest number of frames per second that your system is capable of.


How do I turn off my Razer cortex?


Booster Prime may be turned on or off in Razer Cortex by going to SETTINGS > OPTIMIZATION.


How do I download Razer drivers?


How can I get Razer drivers or update them?

  1. To get help, go to the Razer Support Center.
  2. You can either search for your device model or go to the product list and look for it.
  3. On the left side of the product support page, click Software & Drivers.
  4. Download the appropriate software or driver for your operating system.


How do I update my Razer driver?


Follow the procedures below to manually update your drivers:

Select "Device Manager" from the context menu when you right-click the "Start" button.

Expand the category for the device you'd like to update, such as "Display adapters."

Choose one from the list, then right-click and choose "Update Driver" from the drop-down menu.



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