Solved: Microsoft Update failed-BITS Error

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Thread Starter
Feb 10, 2008
automatic microsoft update continued to fail on everyday from Feb 16th and today i tried to do manual update [Microsoft .NET Framework 2.0 Service Pack 1 (KB110806)]. I received a error:Error Code: 0x80246008.

The Microsoft Help asked me to start BITS (Background Intelligent Transfer Service) and I received an "cannot start the Background Intelligent Transfer Service on Local Computer. Error 126: The specified module couldnot be found"

Please help me. What I can do to resolve this error? I am actually using Win XP (servicepack 2). why the update is installing servicepack 1?
Sep 21, 2007
Dot Net has its own servicepack numbers. It has nothing to do with the Windows service pack numbers.


Thread Starter
Feb 10, 2008

I contacted Microsoft Live Support, they emailed me quickly. Please friends read the below email (J FYI)

To troubleshoot this issue, I suggest we first perform these steps:

Step 1.Check Windows Update related services
1. Click Start->Run, type "services.msc" (without quotation marks) in the open box and click OK.

2. In the right pane, please check whether the following four services have been started:

Background Intelligent Transfer Service

If not, please double click the service. In the tab "General ", make sure the "Startup Type" is "Automatic". Then please click the button "Start" under "Service Status" to start this service.

Can we start this BITS service? If not, please use Step 2 to repair BITS service.

Step 2.Repair BITS service

1. Click Start, click Run, type: Inf and press Enter. A folder will be opened.

2. Locate the file "qmgr.inf" in the opened folder (you can type au to locate this file), right click on the file and choose "Install".

Note: The file extension ".inf" may be hidden; we may only see the file named "qmgr".

3. The setup process will try to restore the registry branches automatically. You may not receive any notification. However, if some files cannot be located automatically, we will be prompted to select the installation source. Please click browse, and go to this location:


If this folder is not available, please choose the folder C:\Windows\System32.

4. Restart the computer and test the issue.

Step 3.Manually import BITS Service
1. Click Start, and click Run

2. Enter the following command, and press Enter

Reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BITS\Parameters /v ServiceDll /t REG_EXPAND_SZ /d %windir%\System32\qmgr.dll

3. Restart the PC and retry Windows Update

If the above command does not work, please try the following command:

Reg add HKLM\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBackup

4. Restart the PC.

After that, please check if we start BITS service.

If the issue still persists, please take your time to help me collect the following information for further research.

Note: If there is any error message received, please capture a screenshot about the error message.

1. Press the Print Screen key (PrtScn) on your keyboard.

2. Click "Start", click "Run", type "mspaint", and click "OK".

3. In Paint, click Paste under the Edit Menu, click Save under the File menu, type a file name for the screenshot, choose JPEG as "Save as type", click “Desktop” on the left pane, and click Save.

4. Please find the screenshot on the Desktop and send it as an attachment to: [email protected]

System Information
The System Information can provide us with more information about the current status of the system. I would like to check it for you. Please send it to me using the following steps:

1. Click "Start", go to "Run", type in "MSINFO32" (without quotation marks) and press Enter to start System Information.

2. On the popup window, on the menu bar, click "File", and click "Save to"; save it as an NFO file, such as "system.nfo" to your local Desktop.

3. Find the file, right-click on this file, click "Send To", and click "Compressed (zipped) Folder".

Please send it as an attachment to [email protected]

Note: When attaching files to emails, the process will vary depending on the email application being used. While you are composing the email, most applications will provide you with either an Attach Button or Paper Clip Icon to click in order to attach a file. After clicking this button/icon you must browse to the file you wish to attach and select it by either double clicking it or clicking it once and then clicking on the attach button.

For more information about the System Information tool, please refer to the following article:

Title: Description of Windows XP System Information (Msinfo32.exe) Tool


Please try the above steps and let me know the results at your earliest convenience. If there are any questions or concerns, feel free to contact me. :)
Jul 3, 2003
I encountered the same issue with MS updates that failed to download and install. didn't help and after searching MS KBA's without success, I emailed MS support.

My BITS service had become corrupt.

Like tikka_masala described; I implemented the following changes and updates now download & install properly.

Here's what I did after setting a restore point:

1. Click Start, and click Run.
2. Enter the following command, and press Enter
"Reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BITS\Parameters /v ServiceDll /t REG_EXPAND_SZ /d %windir%\System32\qmgr.dll" (no quotes) Next I was prompted with “Value ServiceDll exists, overwrite (Y/N)?", and chose Y for yes.
3. Restart the PC and retry Windows Update. At this point all critical updates downloaded but not all installed, so I added "Reg add HKLM\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBackup" as indicated below.

If the above command does not work, please try the following command:
"Reg add HKLM\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBackup" (no quotes)

4. Restart the PC.

This did the trick; hope this helps others.
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