Troubleshoot Oracle “DB service running, but database is actually idle issue.
In Microsoft Windows, Oracle database “DB service” seems to be running, but database is actually idle. Also restarting Windows does not start up database completely. What could be the reason?

(1 votes)
smallwei 2:51 pm on October 16, 2009
It is possible the auto restart registry key is set to FALSE.
Check the following registry key: (Go to Start -> Run and run “regedit”)
HKEY_LOCAL_MACHINE/software/oracle/ora_[SID]_autostart- Make sure this key is set to TRUE.