So just finished our upgrade to 11.1.1.9 and what a coincidence 12c was just released. One little snag installing jdeveloper as a user other than an administrator: Once my installation was done I could not update Extensions or Open Source my screen would just freeze/ hang or install from local. The problem : Unable to lock Central Inventory So I just navigated to the following directory and gave my user full control. C:\Program Files\Oracle\Inventory
The Incident Archive: A blog to store my knowledge on the errors that I fix on a daily basis