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Lenovo Staff
Views: 9,484


The Optiarc DVD RW AD-7580S on my Lenovo G550 stopped working after three months. I ran PC Doctor and it failed all tests.


To resolve this issue, remove the affected filter drivers.


To do this, click on Start,  type regedit in the search box, then click on regedit in the Programs list.


If you are prompted for an administrator password or confirmation, key in your password or click continue.


Locate, and then click the following registry subkey:


Note that there could be several instances of the registry subkey that is mentioned in the above step so make sure that you are in the appropriate registry subkey before modifying the upperfilters and the lowerfilters values.


To verify that you are in the appropriate registry subkey, make sure that the default data value is

DVD/ CD-Rom and the class data value is CDrom.

In the right panel, right-click upperfilters , and then click delete .
Click yes to confirm the removal of the upperfilters registry entry.
In the right panel, right-click lowerfilters , and then click delete .
Click Yes to confirm the removal of the lowerfilters registry entry.
Exit registry editor, and then restart the computer.


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