DVD drive pops open

Question

The DVD Drive on my Pavilion DV6 laptop (Windows 7) pops open when I start up and intermittently after start up.
I used the device manager function to disable the dvd drive and this stops the problem so I guess that one of the applications is opening the drive.
Can someone please tell me if there is a way to identify which application is causing the drive to open.
Regards
Ed

Answer 1

Was online with tech support this afternoon and we seem to have solved the problem. Here is what we did.
First, modified the registry
Please try the below steps
Click Start on the Left Bottom of the Screen.
Click Start Search
Type “regedit” and Hit Enter
On the Left hand Pane you can find H-Key-Local Machine.
On the Left side of H-Key-Local Machine you can find “>” sign Click on that “>” Sign.
You can find “System”, just click on beside its “>” sign.
Where you can find “Current Control Set”, just click on beside its “>” sign.
Where you can find “Control”, just click on beside on its “>” sign.
Where you can find “Class”, just click on beside on its “>” sign.
Please look for “{4D36E965-E325-11CE-BFC1-08002BE10318}”, just click on it(Not on the arrow beside it)
In the right side of the pane you can find ‘Upper Filter’
Please select ‘Upper Filter’and delete it.
Then choose the Lower filter and delete it.
In my case, I didn't have the Upper Filter, but I did have a LowerFilters
I deleted it and restarted and the drive still popped open but this may have helped for the next step.
Secondly, I opened up the device manager from the control panel and removed the "hp DVD" device. Afterward, I rebooted. The device automatically got re-installed.
For now, the door seems to be staying shut. We'll see how it goes over the next few days.