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Cdrom Problem, Code 39

Discussion in 'Hardware' started by CarolinaBill, Nov 15, 2015.

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  1. CarolinaBill

    CarolinaBill Thread Starter

    Joined:
    Jan 1, 2006
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    I have just (a week ago) installed Windows 10 over a previous Windows 7 OS but retained a copy of Windows 7 as a dual-boot. My Windows 7 OS has no problems, but the Windows 10 is not recognizing two cd/dvd drives. They show in the bios as they should since they work fine in the Windows 7 boot. The Windows 10 Device Manager shows both drives with a message of corrupted or missing device drivers, Code 39. I have tried the usual remedies for this problem (1) uninstall, restart, and scan for new hardware; and (2) looking in the registry for Upper limit and Lower limit entries. The first time I tried this the only entry for {4d36e965-e325-11ce-bfc1-08002be10318} was "default" and "value not set". When I checked a second time, there was a new entry with a little square in front, showing "##?#ACPI#PNP0501#1#{(same key value)". This had a default entry that was not set, but also a DeviceInstance entry that had a value of ACPI\PNP0501\1.

    The strange thing is that when the Windows 10 installation first completed, the two drives were recognized and useable. I cannot identify anything in particular that I added to cause the error, as it mostly involved reinstalling a number of programs that were not retained from the initial Windows 7 installation.

    Any suggestions?
     
  2. Oddba11

    Oddba11

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    Jim
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