How to run EM of Oracle 11g, if i haven't emctl, netmgr, dbca, OracleDBConsole? I don't know what is wrong with my Oracle 11g, but it is missing a lot of things. After reinstallation it stays the same. My overall path is like C:\oraclexe\app\oracle and after it there are folders like admin, diag, fast_recovery_area, oradata, product. Also, I don't have dbca, netmgr, emctl and service called OracleDBConsole&lt;SID&gt;. How to fix it?
Nothing wrong with it, you installed 11g Express Edition, which is limited and does not include most features.

You can download other editions from here:

https://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html