Question about Acer (91.47A37.001) CD-ROM Drive

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On my acer laptop my cd/dvd drive on the side doesnt work. it doesnt read any disks.

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1. Start > Run.
2. regedit
3. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class in the Registry Editor dialog box and select the {4D36E965-E325-11CE-BFC1-08002BE10318} key, which appears as a folder.
4. Select File > Export
5. save the file to the Desktop in case you need to restore it
6. In the right panel of the Registry Editor, select the LowerFilters line, and then choose Edit > Delete. Click Yes in the Confirm Key Delete dialog box.
7. Do the same for the UpperFilters line
8. Close the Registry Editor.
9. Restart Windows.

Posted on Oct 31, 2009

  • selvi90 Sep 16, 2010

    Hi, i have no Lowerfilters but i have upper filters. So what do i do now?

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1.Make sure the CD's or DVD's u are using does not have scratches on it. 2.IF CD's are fine then Probably your CD Drives Lens is not working properly.Get your Lens repaired.And I am sure it would work.

Posted on Oct 06, 2009

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