Troubleshooting the “Windows could not connect to the System Event Notification Service” Error

Although logging in to your Windows 10 computer may seem like a simple process, it really isn’t, because the Windows operating system has developed a mechanism to prevent third parties or malware from interfering with system access. This mechanism is supported by numerous services, functions and DLLs. And with the advent of Windows Hello, Microsoft has taken this security to a whole new level.

Recently, some users reported that the error message “Windows failed to connect to the System Event Reporting Service. Please contact your system administrator” when logging into your computer. Some users also reported that they were able to log in, but the same error message was displayed in the notification area. There are several ways to fix this error. You should check the status of several Windows services and make sure that they are running. You should also reset Winsock and run a system file check.

What causes the “Cannot connect to system event notification service” error message?

This error can occur for several reasons. First of all, improperly shutting down the PC can corrupt the System Event Reporting Service or SENS, and the PC cannot connect to the local SENS server. Another reason could be a failure, which often occurs in the Windows font cache service and leads to this error.

There is a Windows update file that affects the SENS server and can cause this error. This update is numbered KB2952664 and can be fixed by removing the specified update file. If DHCP is disabled, the system may have difficulty registering DNS and IP address records, so updates are not possible and the resulting error occurs.

It is also possible that an antivirus program is preventing services on the network from updating, so Windows Updates cannot push and install updates. If the antivirus program is causing the problem, disable it first and see if that solves the problem.

How to repair the “Failed to connect to system event notification service” message?

Resetting the Winsock directory

  1. Press Windows + R on your keyboard to run the “Run” utility.
  2. Type “cmd” and press Ctrl + Shift + Enter on your keyboard. This will launch the extended command line.
  3. Enter the following command and press Enter: netsh winsock reset.
  4. Reboot your computer and see if the error persists.

Uninstalling Windows Update KB2952664

  1. Click the Windows icon in the bottom left corner of the screen to open the Start menu.
  2. Now click on Control Panel.
  3. Change the mode view to Category.
  4. Under Programs, click the Remove Program link.
  5. Click the View Installed Updates link on the left side of the window.
  6. Find update KB2952664, right-click on it and select Uninstall.
  7. This will remove the problematic update from your computer.
  8. Reboot your machine and check if the error continues to occur.

Restart and automate the system event notification service.

  1. Press Windows + R on your keyboard to launch the Run utility.
  2. Type “services.MSC” then press OK. The Services window opens.
  3. Wait for all services to load, then select the System Event Reporting service.
  4. Right-click on the System Event Notification Service and select Restart from the context menu.
  5. If the Restart option is not available, click Start.
  6. Then right-click the System Event Notification Service again and select Properties.
  7. Make sure that the startup type is set to Automatic, and then click OK.
  8. Reboot the computer.

Restarting and automating the Windows font cache service

  1. Press Windows + R on your keyboard to launch the Run utility.
  2. Type “services.MSC” and click OK. The services window opens.
  3. Wait for all services to load, then select the Windows Font Cache service.
  4. Right-click on the Windows Font Cache Service and select Restart from the context menu.
  5. If the Restart option is not available, click Start.
  6. Then right-click on Windows Font Cache Service again and select Properties.
  7. Make sure that the startup type is set to Automatic, then click OK.
  8. Reboot your computer.

Frequently Asked Questions

  1. Check your computer's configuration for the System Event Reporting service.
  2. Reset the Winsock directory.
  3. Update the video card drivers.
  4. Remove the Widows update KB2952664.
  5. Optimize Windows for better performance.

  1. Press the Windows + R logo key to open the Run dialog box.
  2. Type services.MSC and click OK.
  3. Find and double-click the System Event Reporting Service.
  4. Click the Startup Type drop-down menu and change it to Automatic.
  5. Click Apply, then click Start.

  1. Hold down the Windows logo and R keys on your keyboard and bring up the Run dialog box.
  2. Type Services.
  3. Right-click on System Event Notification Service and select Restart.
  4. Right-click on System Event Notification Service again and this time select Properties.
  5. Set the Startup Type to Automatic.