How come my Sony DVD RW AW-G540 ATA is not visible in my computer?

by on May 21, 2011

Q: I have a Sony Viao Laptop Model # VGN-NR120E/S running Windows Vista Home Premium. Processor is Intel Pentium Dual Core processor T2310, 1.46GHz, Front Side Bus Speed is 533MHz

Optical Drive is – Sony DVD RW AW-G540 ATA

The drive is not visible in My Computer. It can be seen in Device Manager. It has a yellow triangle with an exclamation point in it. The drive does not work. I have tried to re-install the drive and I get the following message:
A driver (service) for this device has been disabled. An alternate driver may be providing this functionality (code 32)
I recently changed the RAM from 1GB to 2GB. I used the same type modules as what was on there before. Please help.

6 Responses to “How come my Sony DVD RW AW-G540 ATA is not visible in my computer?”

    Microsoft has a nice little fix it utility for this type of problem. Give this a try and let me know if it works for you:


    Mark, thanks for your help. I tried the Microsoft automated troubleshooting service setup. It tells me it is installing the PowerShell and that it will take approximately 5 minutes. After about 20 minutes the installation progress bar shows only about 1 inch of blue. Something is not working. Any ideas?



    Reboot and try the installer again. Let the computer run for a while maybe an hour+ just in case the installer is just taking a long time. Also, if you don’t have a high speed internet connection it may take a while to download the software.

    Make note of any errors if they occur. As long as the program doesn’t crash or error out or show as “not responding” it means it’s working. So I’d suggest just giving it time.


      Mark, I am still having a problem. Tried downloading the installer again and this time I let it run for over an hour and a half, then a pop-up appeared which said: “Fix It troubleshooting cannot continue because an error occured – We’re sorry but powershell failed to install”
      I have a fast cable internet connection so I know that is not the problem. Sorry to bother you with this.

    Picked as best answer

    Looks like Sony has a registry fix for this:


    Mark, once again, thank you very much for your help. You are correct. The answer is at Sony. I went to Sony eSupport and under cd dvd drivers there is a file named “S000TH-01106200-US.EXE” I downloaded this file and ran it…problem solved.
    The article indicates this problem has something to do with the installation of Click to DVD, Adaptec Easy CD Creator 4 Deluxe, iTunes, or the uninstalling of a CD or DVD burning program from the computer.
    Again, thank you very much,