Am getting error no 41 i.e my laptop is not recognozing my dvd

Control panel admistrive tools,computer management,device manager scroll down cd dvd rom drives you might see a yellow question mark ? right click you can you can 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
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.

hope this helps

Code 41Windows successfully loaded the device driver for this hardware but cannot find the hardware device. (Code 41)Recommended resolution

This problem occurs if you install a driver for a non-Plug and Play device, but Windows cannot find the device. Here are some things that you can try to resolve this problem.

If the Troubleshooting Wizard does not resolve the problem, do one of the following:

• If the device was removed, uninstall the driver, connect the device, and then click Scan for hardware changes to reinstall the driver.
• If the hardware was not removed, the driver files might be obsolete. In this case, update the driver from Device Manager. In the device Properties dialog box, click the Driver tab, and then click Update Driver to start the Hardware Update Wizard. Follow the instructions to update the driver.
• If the device is a non-Plug and Play device, you may have to install a newer version of the driver. To install non-Plug and Play devices, use the Add Hardware wizard. Click Start, and then click Run. In the Open box, type hdwwiz.cpl.