My computer is a Acer Aspire X1420G running Windows 7. Its only a few months old and I have never had any trouble before this.
The dvd drive was just fine one night, and the next morning it had vanished from "Computer". I can still see my hard DRIVES and any USB drives i plug in, but no dvd drive. When I looked in Device Manager it just said "CD-ROM drive", no name. After reading several of the posts here I tried a system restore to the last time the dvd drive worked, but no luck. Next I uninstalled the drive in Device Manager and restarted the computer. This had some luck as I can now see the dvd drive name in Device Manger. Still not showing up in Computer or running any of the cds or dvds I put in. When I try to troubleshoot it all I get is to update the device drivers, but when I try that it says they are updated. Device Manager gives me this message, "Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)" I don't know what that means. When I look on Acer's website for updates it says that they only have updates for drivers that are "not contained in Windows 7" and I didn't see an update for a dvd driver. My computer did not come with any discs so I don't have any drivers to reinstall.

The device name listed under Device Manager is HL-DT-ST DVDRAM GH70N SCSI CdRom Device

Can someone tell me where I can find the driver to download? Or is there a different way to fix this?Prior to doing this i suggest you run a utility program such as tune-up utilities which has a trial PERIOD of 30 days or CCleaner which is completely free.
Run both the disk cleanup and registry cleanup.

To find a driver for any device on any computer is pretty simple all you need to do is go into device manager the steps vary on various operating systems.

1. Click Start
2. Right Click on My Computer / Computer and select Manage
3. Select Device Manager from the items listed on the left
4. In the list on the right, click on the plus sign to collapse the list or type of device in question
5. Right click the sub item of the device and select properties
6. Go to the Details tab
7. From the drop down where it says Device Description underneath Property, select Hardware Ids
8. Copy everything after the last ' \ ' into notepad

e. g. " USB\VID_046D&PID_C018&REV_4300" in this case i would omit " USB\" and only use " VID_046D&PID_C018&REV_4300 "

Now TAKE the information you just acquired and place it in any search engine, the search engine will right away find the driver for your device, download install and reboot.

If you install the driver and your device is still not recognized by the operating system i suggest to turn off your computer and detach the device turn it on let the operating system load this will allow the operating to detect a systems configuration change, confirm the change and shutdown the machine.

Re-attach your device and boot up the system.

If your system does not install the new hardware got back into Device Manager and from the Main Menu select Action > Scan for hardware changes

If your issue persists this could be due to a shared driver which another device on the system uses, this would require a reinstall of that shared driver.

It could also mean a faulty port connection, misconfiguration in the bios, resource conflict, faulty hardware ETC..Good evening tricia201426

Please don't take this the wrong way and I am not trying to be a wise guy I have seen this happen to many people in windows 7 and is done by mistake.

#1 if the cd/dvd drive opens normally so that means the drive has power

#2 Open my computer and you see your hard drive now look below it and the next item "Devices with removable storage" to the left of that line is a small white arrow and click on that arrow it now turns black and your DVD shows up.

It can't hurt to check it but by mistake people have done this when really there is nothing wrong.

If the arrow trick doesn't work please look in the "device manager" look down the list to see if there is a cd/dvd listed and or if there is a yellow ! 

Please let us know if that was the issue, Mike 

 Did you read the post?

"Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)"

A registry problem was detected. This can occur when more than one service is defined for a device, if there is a failure opening the service registry entry, or if the driver name cannot be obtained from the service registry entry.
http://technet.microsoft.com/en-us/library/cc772156%28WS.10%29.aspx


If the device is a CD or DVD drive, follow the procedure in Article ID 929461 on the Microsoft Web site
http://support.microsoft.com/kb/929461Please disregard the posts by the above poster.

1. Uninstall the drive through Device Manager.
Restart computer. The drive will be automatically reinstalled.
or...

2. Delete Upper & Lower Filters
 http://support.microsoft.com/kb/982116
Restart computer.
or...

3. Download, and run Restore Missing CD Drive patch
Double click on cdgone.zip to unzip it.
Right click on cdgone.reg, click Merge.
Accept registry merge.
Restart computer.
or...

4. Go to Device Manager, click a "+" sign next to IDE ATA/ATAPI Controllers.
You'll see two items:
- ATA Channel0 (or Primary Channel)
- ATA Channel1 (or Secondary Channel)
Right click on each of them, and click Uninstall. Confirm.
Restart Windows. They'll be automatically reinstalled.
There is more then your way Allan to solve a problem.

Indeed there are. But none of the methods you suggest make sense. Please handle any further conversations about this with me via PM. Thank you.Allan, thank you very much.

#2 on your list worked perfectly.Glad to hear it. Thanks for the update. QUOTE from: Artthetech on July 26, 2012, 10:02:59 AM

There is more then your way Allan to solve a problem.