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How to Start/Stop
COM+ Event System service
Description Services Regedit Back CMD Msconfig
Service name: EventSystem
Display name: COM+ Event System

Description:
Supports System Event Notification Service (SENS), wich provides automatic distribution of events to
subscribing Component Object Model (COM) components. If the service is stopped, SENS will close and will
not be able to provide logon and logoff notifications. If this service is disabled, any services that implicitly
depend on it will fail to start.

Path to executable:
C:\WINDOWS\system32\svchost.exe -k netsvcs  
Type services.msc and press Enter
Services.msc:
This method shows you how to Start/Stop COM+ Event System service from Services.msc
Please perform the following steps:

Please go to Start and choose Run ...
Locate COM+ Event System service observe his current status and open to make changes.
From General tab you can Start/Stop and change the Startup type of COM+ Event System service

To finish press ok button and close Services window
Type regedit and press Enter
Regedit:          
This method shows you how to change Startup type of  COM+ Event System service from Registry Editor
Please perform the following steps:

Please go to Start and choose Run ...
Double click on Start and edit the value:

Change Startup type :

Automatic - 2
Manual - 3
Disabled - 4
Automatic (Delayed Start) - 2

Note: When you change to Automatic (Delayed Start) a new key DelayedAutostart is created with value 1.
When you change to Automatic from Automatic (Delayed Start), DelayedAutostart change value to 0.
Please select, right and copy a registry key from below, then right click on command prompt window
, select Paste and press Enter

To Start COM+ Event System service:

net start EventSystem

Note: You can’t start a service if Startup type is on Disabled.

To Stop COM+ Event System service:

net stop EventSystem

To change Startup type:

Automatic:
REG add "HKLM\SYSTEM\CurrentControlSet\services\EventSystem" /v Start /t REG_DWORD /d 2 /f

Manual:
REG add "HKLM\SYSTEM\CurrentControlSet\services\EventSystem" /v Start /t REG_DWORD /d 3 /f

Disabled:
REG add "HKLM\SYSTEM\CurrentControlSet\services\EventSystem" /v Start /t REG_DWORD /d 4 /f

Automatic (Delayed Start):
REG add "HKLM\SYSTEM\CurrentControlSet\services\EventSystem" /v Start /t REG_DWORD /d 2 /f

Note: When you change to Automatic (Delayed Start) a new key DelayedAutostart is created with value 1.
REG add "HKLM\SYSTEM\CurrentControlSet\services\EventSystem" /v DelayedAutostart /t REG_DWORD /d 1 /f

When you change to Automatic from Automatic (Delayed Start), DelayedAutostart change value to 0.
REG add "HKLM\SYSTEM\CurrentControlSet\services\EventSystem" /v DelayedAutostart /t REG_DWORD /d 0 /f
CMD:          
This method shows you how to Start/Stop and change Startup type of COM+ Event System service from
Command Prompt.
Please perform the following steps:

Please go to Start and choose Run ...
Msconfig:          
This method shows you how to prevent COM+ Event System service from starting with the operating
system using System Configuration (msconfig.exe)
Please perform the following steps:

Please go to Start and choose Run ...
Write msconfig and press Enter
In System Configuration please go to Services tab and locate COM+ Event System service. Uncheck the
box to prevent this service to start and then press OK to finish.  
Any change make in System Configuration will be apply after restart.  
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Microsoft official disclaimer

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by
using another method. These problems might require that you reinstall the operating system. Microsoft
cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Please navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EventSystem and
locate
Start registry key
Type cmd and press ok