1. Via the command prompt:
   
1. Establish a remote connection with the server where EventLog Analyzer is installed.
   
2. Open the command prompt with Admin privileges.
   
3. Navigate to C:\ManageEngine\EventLog Analyzer\bin folder.  
   
4. Execute the following commands sequentially to ensure that the instance is not running:
   
1. shutdown.bat
   
2. stopDB.bat
   
3. stopSEC.bat
   
5. Execute the following command to install EventLog Analyzer as a service.
   
1. service.bat -i
   
6. Go to services.msc and start the ManageEngine EventLog Analyzer service by executing the service.bat -t command.

Note: These are the commands related to ManageEngine EventLog Analyzer service:

1. Install the service: service.bat -i
   
2. Start the service: service.bat -t
   
3. Stop the service: service.bat -p
   
4. ​Restart the service: service.bat -r
   

II. Via the EventLog Analyzer UI:

1. Login to the EventLog Analyzer web console as an Admin.
   
2. Go to the Settings tab ⇾ System Settings ⇾ NT Service ⇾ Install as a Service.
   
3. Enter the service logon account details in the prompt to complete the action. You can provide the credentials of domain admin or the account dedicated for log collection.