Windows

How to Fix Windows Could Not Connect to the System Event Notification Service

Recently, most Windows users encounter an error when they try to sign in to their computer. The message states that ‘windows could not connect to the system event notification service’. This problem can be caused due to various reasons. Generally, it occurs due to a corrupted system service. 

Sometimes, a defective windows font cache service can cause this issue. Accordingly, it can occur due to a faulty Windows update (KB2952664). An outdated security client can cause this issue as well. You may also face this issue if your DHCP client service has been disabled on your windows operating system. 

Solutions to Fix Windows Could Not Connect to the System Event Notification Service 

Here are some of the effective ways to fix this problem on your system. Go through these solutions one by one until your problem is resolved. 

Solution 1: Check System Event Notification Services  

Check System Event Notification Services  

To begin with, System Event Notification Service might have become misconfigured. Thus, go through the following steps given below to correct it. 

  1. First, open the Run dialogue box by pressing the Windows logo key and ‘R’ at the same time on your keyboard. 
  2. After that, type ‘services.msc’ and press the Enter button. 
  3. Next, navigate to System Event Notification Service and double click on it. 
  4. Thereafter, choose the Properties option and change the Startup type to Automatic. After that, close the current window to go back to the services window. 
  5. Here, right click on the service and choose Restart. Then, click on the Apply option and followed by the OK option. 

Lastly, reboot your device and check whether the error message still appears on your system or not. 

Solution 2: Reset Winsock Catalog 

Reset Winsock Catalog 

Another effective way to resolve the issue is by simply resetting the Winsock Catalog. Hence, follow the steps mentioned below to reset the Catalog.  

  1. First, open the Run dialogue box by pressing the Windows key and ‘R’ at the same time on your keyboard. 
  2. Next, you need to enter ‘cmd’ and press Ctrl + Shift + Enter keys simultaneously. 
  3. After that, a pop up will appear asking for Admin permission. Click on yes to continue.
  4. Next, type ‘netsh Winsock reset’ in the console and execute it by pressing the Enter key. 

Thereafter, restart your device and check whether the problem has been resolved or not. 

Solution 3: Enable DHCP Service 

Enable DHCP Service 

As stated earlier, the ‘Windows could not connect to the system event notification service’ appears if DHCP service is disabled. Thus, you need to enable the DHCP service by following the steps given below. 

  1. Initially, open the Run dialog box and by pressing the Windows key and ‘R’ letter at the same time.  
  2. Next, enter “services.msc” and then hit the Enter button to open the Services screen. 
  3. Go to the list of services and then select the DHCP Client. 
  4. Now, navigate to the properties screen of DHCP and then select the General tab. 
  5. Check whether the Service status is set to Running or not. If you find it is not running, then go to the Start button to begin the process. 
  6. Before choosing the Apply option, assure that you set the Startup type to Automatic. 
  7. Finally, reboot your operating system and check whether the problem has been resolved or not. 

Solution 4: Uninstall KB2952664 Update 

Uninstall KB2952664 Update 

Sometimes, the error can be caused due to a defective KB2952664 Windows Update. Thus, you can resolve this problem by uninstalling it. This can be done by performing the below-mentioned steps accordingly. 

  1. Open the Run box and by pressing the Windows logo key and ‘R’ at the same time. 
  2. After that, you need to enter ‘control’ and then hit the Enter key. 
  3. Go to the View by Category option and then click on the Programs option. 
  4. Now, double-click on the Uninstall a program option and go to the View installed updates option. This option is available on the left menu pane.  
  5. Finally, find and uninstall the KB2952664 windows update. Thereafter, restart your system and check if the problem has been resolved or not. 

Solution 5: Optimize Windows for Faster Performance 

Optimize Windows for Faster Performance

With the help of the Windows performance Troubleshooter, you can fix the slow performance of your operating system. To optimize Windows, follow the steps mentioned below. 

  1. First, click on the Windows Start button and then select the Control Panel option. 
  2. In the search box, enter the Troubleshooter and then click on the Troubleshooting option. 
  3. Finally, head over the System and Security option and then select the Check option for performance issues. 
  4. Follow the instructions as displayed to rectify any issues that may persist. 
  5. Lastly, restart your system and confirm whether the problem has been fixed. 

Conclusion 

Hopefully, you should be able to get rid of the ‘windows could not connect to the system event notification service’ message with the help of the above-mentioned steps. Generally, resetting the Winsock catalogue or uninstalling the faulty update should do the trick for you.