title: ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist ORACLE 10g XE
body: <p><a href="https://i.stack.imgur.com/GoP4d.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/GoP4d.png" alt="enter image description here"></a></p>
  
  <p>Dont know what went wrong.
  It worked perfectly first time untill i restarted my Machine.</p>