Cd rom drive

Click start control panel administrive tools,computer management,device manager scroll down cd-dvd rom drives you might see a yellow question mark ? right click you will have options to update driver,roll back driver,or select properties general troubleshoot, select driver click to reinstall drivers click update driver or uninstall then reinstall if this does not fix the problem it might be a registry problem if you cant see your disk drive in windows explorer
Close all open programs

Click on Start, Run, and type regedit and press Enter
Click on the plus signs (+) next to the following folders

HKEY_LOCAL_MACHINE

SYSTEM

CurrentControlSet

Control

Class

{4D36E965-E325-11CE-BFC1-08002BE10318}

This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.

Upper Filters

Lower Filters

Upper Filters.bak

Lower Filters.bak

If any of the above keys shown in step 4 are listed, right-click on them and choose Delete

After deleting the keys, close the registry editor
Reboot your computer
Open My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone. or
you might have to physically unplug the leads for this cd/dvd then plug them back this should activate the found new hardware wizard or
you might have to uninstall then restart your computer then reinstall your DVD/CD then reinstall the driver for this device
if your computer came with a motherboard disk the drivers could be on it
click start control panel administrive tools computer management device manager scroll down cd dvdrom drives if you see a yellow question or exclamation mark? ! or a red x right click you will need to update the driver or
select properties general troubleshoot, select driver click to reinstall drivers click update driver
hope this helps you

Please provide the complete details.. make and model number, operting system!
Make sure you've tested more than one CD in the disc drive, it is possible for one CD to be bad or dirty and not be read properly

1. Click Start
2. Click Settings
3. Click Control Panel
4. Double-click System
5. Click the Hardware tab and then the Device Manager button or just the Device Manager tab.

Within Device Manager verify that the CD-ROM has no exclamation marks or red Xs. If listed with a yellow exclamation mark or red X, remove the CD-ROM by highlighting the drive and pressing the delete key and reboot the computer to reinstall the CD-ROM drive

CD/DVD drive drivers are Operating System generic drivers and need not to be installed explicitly. The CD/DVD drive drivers are installed along with the Operating System and can be reinstalled automatically at next restart, if missing.

Check in the Device Manager under the "CD/DVD drive" category if there is any device listed there and having exclamation mark. If there is any exclamation mark visible beside the CD/DVD drive name then right click on it and restart the Computer.

Restarting the Computer will reinstall the CD/DVD drive driver thus causing it to work normally.

Give this a whirl:
CD-Rom stops working. After checking device manager you find an exclamation mark on the drive. It doesn't mean the drive is dead. It could be an upperfilter or lowerfilter registry issue that is keeping you from accessing the cd drive.

This fix worked for my client:
http://www.dougknox.com/xp/utils/XP_CD-DVD-Fix.zip

Also, try this fix from microsoft.

CD-ROM access is missing and messages cite error code 31, code 32, code 19, code 39, or code 41.

Try this before replacing the drive and remember that you may have to reinstall some burning software.

sir
you should reinstall the drivers for your DVD ROM . It should be given to you when you have purchased it.
if not go here and download

The yellow triangle is signifying that there is a problem with the drive. Usually it is a driver that has gotten corrupted. Try uninstalling the drive in your device manager then reboot. See if Windows reinstalls the drive automatically. 99% of the time this will fix the problem. Hope this helps & please take a moment to rate this solution. Thanks.

Its not finding hardware? try remove the drive and change IDE or SATAcable(what ever you're using)and reinsert and reinstall the drivers.

Hi,
Please go through the below provide steps.
Fixing Code 39 Error
If your CD-ROM drive is not visible in My Computer, you may see the following error message displayed with the CD or DVD drive item in your Device Manager. (Steps to open Device Manager are discussed later in the article.)
"Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)"
Using Device Manager
To fix this error, first try to update the driver from the Device Manager. To open Device Manager, right-click My Computer on your Desktop, and then on the Hardware tab, select the Device Manager button.
In the Device Manager window, identify the CD or DVD drive item (with Yellow exclamation mark), right-click on it and select Update Driver. Follow the screen instructions to update the device driver and restart your PC.
Using Registry Editor
If updating the driver does not resolve the problem, it indicates that there is a problem in the registry. To fix this problem, you may have to remove a few keys from the registry.
Note: Be careful while working with the registry editor because changes done to the registry using the Registry Editor are irreversible and mistakes can leave you with more problems than when you started. Therefore, it is recommended that you make a backup of the registry before proceeding with the changes.
After you have removed the registry keys listed below, you will have to reinstall all applications that you use for CD or DVD recording to make them work properly.
To fix the error by editing the registry, perform the following steps:

1. Exit and close all applications currently running on your PC.
2. On Start > Run type Regedit and press the Enter key.
3. Next, navigate to the following registry key:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ Control\Class\ {4D36E965-E325-11CE-BFC1-08002BE10318}
4. Delete any of the following registry entries if they exist under this key:
   • LowerFilters
   • LowerFilters.bak
   • UpperFilters
   • UpperFilters.bak
5. Restart your PC and open My Computer to ensure that the CD-ROM drive is visible.
6. Also, open the Device Manager again to ensure that the yellow exclamation mark and the error code is now gone.
7. Restart your PC and open My Computer to ensure that the CD-ROM drive is visible.
8. Also, open the Device Manager again to ensure that the yellow exclamation mark and the error code is now gone.

Thank you........

An exclamation mark next to the cd/dvdw in device manage means that there is a problem with the device's drivers. Either they are not the correct driver, or it has become corrupt. Try reinstalling the driver from the Toshiba website.

Either the drive has gone bad and will need replacing the Windows installation is corrupt.
I would first try reinstalling Windows and see if that fixes the issue. You will need to back up any data that you have before doing this.
If you still have the same problem then replace the drive. Below is a link to a manual on how to replace hardware on the laptop:

http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c01120667/c01120667.pdf

You can find more troubleshooting info on your laptop at the following link:

http://h20000.www2.hp.com/bizsupport/TechSupport/SupportTaskIndex.jsp?lang=en&cc=us&taskId=110&prodTypeId=321957&prodSeriesId=96235

Hope this helps!