Question about HP Pavilion a815n (PS512AA) PC Desktop

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Windows xp does not recognize my cd driver since I have replaced my power supply, no disks play at all. control panel>device manager ..reads a code #41,..even tried to restart to an earlier date at no resolve!..do I need a new driver,or is it something that can be programmed? I currently have hp pavilion a815n w/dvd 630c driver.

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  • 28 Answers

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To resolve this behavior, follow these steps: 
Start Registry Editor (Regedt32.exe).
Locate the UpperFilters value under the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

On the Edit menu, click Delete, and then click OK.
Locate the LowerFilters value under the same key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

On the Edit menu, click Delete, and then click OK.
Quit Registry Editor.NOTE: After you remove the Upperfilters value and the Lowerfilters value, if you notice lost functionality in a particular program, such as CD recording software, you may need to reinstall that software. If the problem recurs, consult with the software vendor for assistance. 


Restart your computer.

Posted on Jan 31, 2009

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at end of this instruction set, see link to review more questions/answers,as your issue with CD/DVD ROM will vary .


This document applies to HP and Compaq desktop computers with Windows XP, Me, and 98. Use this document to make Windows and the CD writing software recognize the CD or DVD writer drive. Start at Step 1; do not skip to other sections until Step 1 has been completed. Step 1: Does Windows detect the CD or DVD drive? Use Device Manager to determine if Windows is recognizing the drive:
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here is a link that will give you several other questions and answers to CD/DVD ROM issues.

http://h10025.www1.hp.com/ewfrf/wc/documentSubCategory?tmp_rule=11843&tmp_task=solveCategory&lc=en&dlc=en&cc=ca&lang=en&product=443069

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My computer wont read disks it was able to a few days ago and i went to go put in a disk that needs to get installed before i can use a camera. I have tried others disks and it wont read any of them....


You need to first check if the disk is being detected by Computer--

click start---computer ---check if the disk that u insert is visible there or not.
And also chk in device manager---by right click on computer--properties---device manager(vista)--look for cd/dvd drive.
right click on my computer---properties---hardware----device manager(xp))--look for cd/dvd drive.

If not visible in device manager then u have to open up ur computer and reseat the cd/dvd drive cables...

If its visble in device manager--then right click on the option under cd/dvd drive----properties----check for the error code.
If error code 19 , 31 , 32 , or 39 is displayed inside Device Status.

Then click start -- run -- and -- type regedit -- click ok . the registry editor appears.

In windows XP -- click file -- EXPORT-- TYPE A FILENAME THAT IS EASY FOR YOU TO REMEMBER AND CLICK SAVE.

A COPY OF THE REGISTORY HAS SAVED FOR BACKUP PURPOSE.
CLICK THE PLUS SIGN (+) NEXT TO THE FOLLOWING ITEMS IN THE LIST :

In Vista click:

HKEY_LOCAL_MACHINE
SYSTEM
CURRENTCONTROLSET (OR THE CURRENT CONTROL SET WITH LOWEST NUMBER IF THAT IS ALL THAT IS LISTED)
CONTRO
CLASS
SELECT 4D36E965-E325-11CE-BFC1-08002BE10318
SELECT THE UPPER FILTER IN THE RIGHT WINDOW AND PRESS THE DELETE KEY
CONFIRM THE DELETION BY CLICKING YES
SELECT THE LOWER FILTERS IN THE RIGHT WINDOW AND PRESS THE DELETE KEY
CONFIRM THE DELETION BY CLICKING YES
DELETE ALL OTHER UPPER FILTER AND LOWER FILTER VALUES WITHIN THE 4D36E965-E325-11CE-BFC1-08002BE10318 KEY
CLOSE THE REGISTRY EDITOR AND RESTART THE COMPUTER ...
This should resolve the issue...
Let me the the error code and msg in device manager window.....

Thank you ....

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RW Combo


check your power supply data cable.
check also your disk.
clean your lense.
if u have warrenty replace it.

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