Question about Acer Aspire T690 (AST690UP820A) PC Desktop

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Code 39 on DVD Philips SDVD8821

Internal DVD drivers won't load & DVD won't work. On the device manager it indicates that the windows cannot load the drivers for this hardware due to the driver may be corrupt or missing. (Code 39). Can u help with this problem as I've tried Microsoft and they have said it is the manufacturer problem and I can't contact ACER to report the problem,but they have no contact address, email address or phone number to call on their website.


cd drives quit working. device manager says windows cant load the device driver for this hardware. the driver may may be corrupt or missing code 39

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  • myratj Jun 15, 2008

    my acer notebook aspire 5580 t550 also had this problem code 39. under my computer, it could not detect any cd rom drives. there is this yellow exclamation point under the device manager dvd/cd rom drive philips dvd-ram sdvd 8821 ata device. with this problem code 39. Is the solution the same as your instruction to aspire t690? i'm running windows vista home premium ...hope you could reply soon...thanks. -myra

  • manucsa Feb 14, 2009

    mr: Malik really helpful , thanks man

  • runtmc20 Apr 13, 2009

    I'm having a similiar problem, but instead of an ACER computer I have a an HP Pavilion DV6000T. My drive will not read any CDs or DVDs I insert. It happened after I tried to install install shield 3.5 off of a CD. The laptop locked up and I had to do a cold reboot. Now I have power to my CD-rom drive, but it woin't read anything. I called HP support, but since my warranty has expired they will not help me unless I pay big bucks!!!! They did give me a clue by suggesting the problem can be fixed through the regisrty. Does anyone have a clue as to where in the registry? Please help!!!!!!

    PS. I tried the above fix suggested by Malik Khan, but I I did not have any upper or lower filters in the area he said to look.



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The issue you have posted does require more information to troubleshoot and fix it, information like what type Version of windows you are using and does the drive in the device manager has a YELLOW ! Mark, is the drive is visible in on the device manager page under DVD/CD ROM drives option, however I am suggesting you few steps with the best of my expertise according to the information I could gather reading post which usually fix these kind of issues please follow the instructions below.
1. Click the Start button, click Run.
2. In the RUN box, type Regedit, and then click OK.
3. Click the plus sign (+) next to HKEY_LOCAL_MACHINE.
4. Click the plus sign (+) next to SYSTEM.
5. Click the plus sign (+) next to CurrentControlSet.
6. Click the plus sign (+) next to Control.
7. Click the plus sign (+) next to Class.
8. Click {4D36E965-E325-11CE-BFC1-08002BE10318}.
9. On the right side of the window, click UpperFilters. Click Edit on the menu bar.
10. Click Delete, and then click OK.
11. On the right side of the window, click LowerFilters.
12. Click Edit on the menu bar.
13.Click Delete, and then click OK.
14.Click File, and then click Exit.
15. Restart the computer normally.
NOTE: When you click the plus sign (+) next to a folder, it will expand displaying the folders it contains in the left-hand pane of the Registry Editor. When a folder is highlighted, its contents will be displayed in the right-hand pane of the Registry Editor.
In some machines any one of the filters like Lower or Upper filters options will be missing so do not worry if you are not able to find any one of the filters, just delete the one which is found and continue with the other suggested options.
After completing the above mentioned steps restart your computer.
Once the system is back to the desktop screen, please perform the steps mentioned below.
1. Click on start and right click on my computer then left click on properties.
2. Click on hardware on the top right hand corner and then click on device manager.
3. Click on the + sign next to DVD/CD ROM drives option.
4. Right click on the DVD drive option and left click on uninstall.
6. Click on the ‘Action’ and click on ‘ Scan for hardware changes ’ option
5. Close all the windows on the screen.
NOTE: You might need to reinstall any CD recording application or the DVD player Application if you have on your system if they start to not work completely, after doing this.


Malik Khan

Posted on Jan 30, 2008

  • happaNYC Sep 11, 2010

    I love precise, exact solutions like this! It did exactly what I needed. Thank you, Mr. Khan.

  • casa2010 Dec 01, 2010

    You're a lifesaver. Thanks for putting good info like this out there for us to find. Note to others in the future. Read carefully. I thought this didn't work because I only deleted the upper filters the first time and thought that it didn't solve things. so, make sure you delete both sets of filters


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I'm trying this advice right now. praying it works so i can load sims3!!!

Posted on Jun 28, 2009


I've had the same problem on an ACER and just tried this advice. Thank you - it worked!


Posted on Aug 29, 2008

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1) Close all open programs 
2) Click on Start, Run, and type REGEDIT and press Enter
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