hope this helps
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 DeleteAfter deleting the keys, close the registry editorReboot your computerOpen 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
if this fails to fix the problemIt could be a problem with the lens you could use a liquid type lens cleaner place 2-3 drops on top of a cd/dvd then run it
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 DeleteAfter deleting the keys, close the registry editorReboot your computerOpen 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. If your computer came with a motherboard disk the drivers could be on it if you dont have motherboard disk you will need to download the drivers http://download.cnet.com/dvdram-en-20071009085435-zip/3000-2110_4-172943.html http://download.cnet.com/dvdram-en-20070907111350-zip/3000-2110_4-170034.html http://download.cnet.com/dvdram-win2k-5025-en/3000-2110_4-172950.html http://download.cnet.com/adaptec-udf-reader-driver/3000-2100_4-10021086.htmlhope this helps you
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