Deleted Windows audioendpointbuilder driver

Question

I recently went and deleted the audioendpointbuilder driver using the elevated command prompt. It is no longer listed in services. Is there somewhere I'd be able to download a copy of it and, if so, how ought I go about reinstalling it? This is for a second-hand Dell laptop that presumably has no warranty and no Windows disk, though Windows is genuine. Also, there is no system restore point to return to, unfortunately.

I did this due to receiving an error that explained that there was an invalid memory access. The exact code I do not exactly recall (1068, perhaps?). This was, in hindsight, more than likely not what I should have done.

Answer 1

Exactly how does one "delete the audioendpointdriver" in such a way that the Service disappears (what exactly did you do).

If the Service is missing, you can just add it back - if that is all that is missing.  The Service is very generic and should not be different from machine to machine.

Before making any changes to your registry, back up the registry with this popular free tool:

http://www.snapfiles.com/get/erunt.html

You may also want to manually create a System Restore point before making these adjustments.

Open Notepad (and only Notepad) to create a new text file:

Click the Start orb and in the box enter:

notepad

Select/Click Notepad.exe to open a new Notepad file.

Copy and paste the following lines of BOLD text into the new Notepad file:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\AudioEndpointBuilder]

"DisplayName"="@%SystemRoot%\system32\audiosrv.dll,-204"

"Group"="AudioGroup"

*"ImagePath"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,*

*74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,*

*00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,*

*6b,00,20,00,4c,00,6f,00,63,00,61,00,6c,00,53,00,79,00,73,00,74,00,65,00,6d,*

*00,4e,00,65,00,74,00,77,00,6f,00,72,00,6b,00,52,00,65,00,73,00,74,00,72,00,*

69,00,63,00,74,00,65,00,64,00,00,00

"Description"="@%SystemRoot%\System32\audiosrv.dll,-205"

"ObjectName"="LocalSystem"

"ErrorControl"=dword:00000001

"Start"=dword:00000002

"Type"=dword:00000020

*"DependOnService"=hex(7):50,00,6c,00,75,00,67,00,50,00,6c,00,61,00,79,00,00,00,*

00,00

"ServiceSidType"=dword:00000001

*"RequiredPrivileges"=hex(7):53,00,65,00,43,00,68,00,61,00,6e,00,67,00,65,00,4e,*

*00,6f,00,74,00,69,00,66,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,*

67,00,65,00,00,00,00,00

*"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,*

00,01,00,00,00,60,ea,00,00,01,00,00,00,c0,d4,01,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\AudioEndpointBuilder\Parameters]

*"ServiceDll"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,*

*00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,*

*41,00,75,00,64,00,69,00,6f,00,73,00,72,00,76,00,2e,00,64,00,6c,00,6c,00,00,*

00

"ServiceDllUnloadOnStop"=dword:00000001

Save the new text file with a .reg extension to your desktop or someplace you can remember with a name you can remember, something like:

fixit.reg

After saving the file, close Notepad.

Locate the fixit.reg file on your desktop and double click it.

Alternatively, you can right click the fixit.reg file, choose Merge or Open With... and select the Registry Editor or Import.

Respond in the affirmative to the question... Are you sure you want to continue?

You should then see a message that the information was successfully added into the registry.

Reboot your system and test to be sure the changes "stick".

You can remove the fixit.reg file when you are done.

Answer 2

All went well until 'dir C:\Win*'. It returned the message 'Volume in drive C is system reserved, Volume serial number is [xxxx-xxxx]' before returning me to the X:\ directory. The log-in window only had the option for a single user (there is only one, myself, the administrator account on this machine). Out of curiosity, I gave it a go in the X:\ directory and it worked up till step 9. Thanks for the help.

Answer 3

I haven't a backup registry to use, I don't believe.

Yes, you do. Here are the steps you need to take to restore an old version.

1. Keep tapping F8 during the early boot phase.
2. Select Repair from the menu.
3. Log on as Administrator if prompted.
4. Select Repair when prompted.
5. Select the Command Prompt from the menu.
6. Identify the correct drive letter for your Windows installation. It could be a drive other than C: but it won't be X:. You do it by typing the commands

    dir C:\Win*

    dir D:\Win*

    dir E:\Win*

    until you find the Windows folder.

    I will call that drive "Q:".

7. Type these commands:

    cd  /d  Q:\windows\System32\config

    xcopy  *.*  Q:\MyRegBack\

    cd  RegBack

    dir

8. Examine the dates of the Software, System and SAM files. Were the files created before or after you removed the driver?
9. If they were made before then you can type these commands:

    copy /y software  ..

    copy /y System  ..

    copy /y Sam ..

    (the two dots are part of each command)

10. Reboot normally. If things do not work out then you can backtrack by copying the original registry files from Q:\MyRegBack to Q:\Windows\System32\config.

Answer 4

I tried the Dell site and unfortunately that didn't work. I specifically need the Windows audioendpointbuilder driver. I did indeed remove the driver and haven't a backup registry to use, I don't believe. Thanks, though.

Answer 5

This is for a second-hand Dell laptop.

-> You could download and re-install the sound card driver from the Dell site for this particular model.

There is no system restore point to return to, unfortunately.

-> Frequently the art of maintenance consists of leaving a backout path, e.g. by manually creating a restore point in advance or by renaming files, folders or registry keys rather than deleting them. If your action did not involve the removal of files then it might be reversible by using a backup copy of the registry. This option expires after a day or two.