1. Shutdown the "OracleDBCosolemyserver" service. 

2. Connect in SQLPLUS as sysdba and shutdown database.
	SHUTDOWN IMMEDIATE;

3. Startup the database as:
	STARTUP RESTRICT;

4. Start the dbconsole service from the services panel. 

5. Open sqlPlus and login as SYSDBA. Execute following sequence of scripts:


	EXEC sysman.emd_maintenance.remove_em_dbms_jobs;
	EXEC sysman.setEMUserContext('',5);
	REVOKE dba FROM sysman;

	DECLARE
	    CURSOR c1 IS
	      SELECT owner, synonym_name name
	      FROM   dba_synonyms
	      WHERE  table_owner = 'SYSMAN';
	BEGIN
		FOR r1 IN c1 LOOP
			IF r1.owner = 'PUBLIC' THEN
				EXECUTE IMMEDIATE 'DROP PUBLIC SYNONYM '||r1.name;
			ELSE 
				EXECUTE IMMEDIATE 'DROP SYNONYM '||r1.owner||'.'||r1.name;
			END IF;
		END LOOP;
	END;
	/

	DROP USER mgmt_view CASCADE;
  
	DROP ROLE mgmt_user;
  
	DROP USER sysman CASCADE;
  
	ALTER SYSTEM DISABLE RESTRICTED SESSION;

	alter user dbsnmp identified by MANAGER;

6. Carefully edit following commands by changing host name and passwords and run in Command Prompt:

	D:\app\hashmi\product\11.2.0\dbhome_1\BIN\emca.bat -deconfig dbcontrol db -repos drop -silent -DB_UNIQUE_NAME myserver -PORT 1521 -EM_HOME D:\app\hashmi\product\11.2.0\dbhome_1 -LISTENER LISTENER -SERVICE_NAME myserver.domain -SYS_PWD MANAGER -SID myserver -ORACLE_HOME D:\app\hashmi\product\11.2.0\dbhome_1 -DBSNMP_PWD MANAGER -HOST myserver -LISTENER_OH D:\app\hashmi\product\11.2.0\dbhome_1 -LOG_FILE D:\app\hashmi\diag\rdbms\myserver\myserver\trace\emConfig_drop.log -SYSMAN_PWD MANAGER
	
	D:\app\hashmi\product\11.2.0\dbhome_1\BIN\emca.bat -config dbcontrol db -repos create -silent -DB_UNIQUE_NAME myserver -PORT 1521 -EM_HOME D:\app\hashmi\product\11.2.0\dbhome_1 -LISTENER LISTENER -SERVICE_NAME myserver.domain -SYS_PWD MANAGER -SID myserver -ORACLE_HOME D:\app\hashmi\product\11.2.0\dbhome_1 -DBSNMP_PWD MANAGER -HOST myserver -LISTENER_OH D:\app\hashmi\product\11.2.0\dbhome_1 -LOG_FILE D:\app\hashmi\diag\rdbms\myserver\myserver\trace\emConfig_recreate.log -SYSMAN_PWD MANAGER

7. R-start the dbconsole service from the services panel 

8. Install following flash componenets for browser:
	install_flash_player_23_active_x
	install_flash_player_23_plugin
	install_flash_player_23_ppapi

9. Open EM in internet explorer and add link to trusted websites.

LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=myserver.domain)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 11.2.0.3.0 - Production
Start Date                10-OCT-2017 15:33:44
Uptime                    6 days 17 hr. 15 min. 20 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   d:\app\hashmi\product\11.2.0\dbhome_1\network\admin\listener.ora
Listener Log File         d:\app\hashmi\product\11.2.0\dbhome_1\log\diag\tnslsnr\ISDB\listener\alert\log.xml

Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=myserver.domain)(PORT=1521)))
Services Summary...
Service "myserver.domain" has 1 instance(s).
  Instance "myserver", status READY, has 1 handler(s) for this service...
Service "myserverXDB.domain" has 1 instance(s).
  Instance "myserver", status READY, has 1 handler(s) for this service...
The command completed successfully

C:\Windows\system32>emctl status agent
Oracle Enterprise Manager 11g Database Control Release 11.2.0.3.0
Copyright (c) 1996, 2011 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
Agent Version     : 10.2.0.4.4
OMS Version       : 10.2.0.4.4
Protocol Version  : 10.2.0.4.4
Agent Home        : D:\app\hashmi\product\11.2.0\dbhome_1\myserver.domain_isdb
Agent binaries    : d:\app\hashmi\product\11.2.0\dbhome_1
Agent Process ID  : 2108
Agent URL         : https://myserver.domain:3938/emd/main
Repository URL    : https://myserver.domain:1158/em/upload/
Started at        : 2017-10-10 15:53:48
Started by user   : SYSTEM
Last Reload       : 2017-10-10 16:00:04
Last successful upload                       : 2017-10-17 08:39:20
Total Megabytes of XML files uploaded so far :    26.87
Number of XML files pending upload           :        0
Size of XML files pending upload(MB)         :     0.00
Available disk space on upload filesystem    :    95.23%
Data channel upload directory                : D:/app/hashmi/product/11.2.0/dbhome_1/myserver.domain_isdb/sysman/recv
Last successful heartbeat to OMS             : 2017-10-17 08:49:10
---------------------------------------------------------------
Agent is Running and Ready



C:\Windows\system32>emctl status dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.3.0
Copyright (c) 1996, 2011 Oracle Corporation.  All rights reserved.
https://myserver.domain:1158/em/console/aboutApplication
Oracle Enterprise Manager 11g is running.
------------------------------------------------------------------
Logs are generated in directory d:\app\hashmi\product\11.2.0\dbhome_1/myserver.domain_isdb/sysman/log

ping -a <IP>