oracle11g EM Login Failed "Your user name and/or password is invalid"

Problems that arise:

Installed Oracle 11g R2 64-bit version, there has been no use for a while, today suddenly to tidy up new data, but found that the original user password, no matter how login is the result of failure, online simple search, found that the solution is super simple, the cause of the problem is very simple.

Cause of the problem:

Oracle Login user Password, if installed on the server, do not pay attention to the issue of user and password expiration, then, the default of 180 days later, hey, the system will be locked your account, some people will say plsql how to log in, then I will remind you, Plsql login is not only the account password, but the identity of Windows users landing Oh.

The solution:

Super simple, the first step:

Open the CMD Command window and enter the following command: Sqlplus "/as sysdba", carriage return

Step Two:

Input command: ALTER USER SYS identified by ORCL, enter

Step three: Return to the EM login page, enter the user name: sys, fill in the password: ORCL, login bar, admin page out

oracle11g EM Login Failed "Your user name and/or password is invalid"