1: open a command prompt.
2: go to the %BEA_HOME%/user_projects/domains/base_domain/bin dir
3: run the setDomainEnv.cmd file.
4: This will bring you to base_domain dir. Now run the following command:
java weblogic.security.utils.AdminAccount sandeep sandeep11 .
Do not forget to use the last “.” which is going to inform the utility to create the DefaultAuthenticatorInit.ldift in the Domain_Home dir.
5: Also try to use a password with atleast 8 chars and with at least one numeric digit.
6: then rename the DefaultAuthenticatorInit.ldift that is already present in the %Domain_Home %/security dir to
DefaultAuthenticatorInit_old.ldift and place the newly generated DefaultAuthenticatorInit.ldift file in the %Domain_Home %/security dir.
7: Also delete the %Domain_Home %/servers/AdminServer/security/boot.properties file.
8: Rename the %Domain_Home %/servers/AdminServer/data/ldap/DefaultAuthenticatormyrealmInit.initialized file to DefaultAuthenticatormyrealmInit_old.initialized
9: Now you can try to start the Admin Server with through the command prompt using startWeblogic.cmd file.