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F10 = BIOS setup
F11 = recovery utility (if it exists)

Reseeding missing or corrupt .dll files

Background Intelligent Transfer Service will not start

Posted by Aseem on Tuesday, November 25th 2008

25
Nov

Background Intelligent Transfer Service (BITS) is a service built into Windows that transfers files in the background using idle network bandwidth. It basically acts as a download manager for Windows Update and other services by being able to resume from broken or partial downloads.

If you are having problems with downloading Windows updates because BITS will not start or is giving errors, there are a couple of ways you can try to fix the issue. If you are getting any of these errors, read on:

Background intelligent transfer service did not start properly

Background intelligent transfer service will not start

Background intelligent transfer service has stopped working

If BITS can’t be started for some reason, first make sure it is enabled in the Services control panel applet. Go to Start, Control Panel, Administrative Tools, and click on Services.

Make sure that Background Intelligent Transfer Service is set to Automatic or Manual as the startup type.

If it’s not set to Manual or Automatic, then double-click on it and change the startup type to either one of these. If the service is configured correctly, but BITS will still not start up properly, check to make sure none of the dependent services are disabled.

Again, go through the list of services and make sure all of the following are set to Automatic or Manual:

Terminal Services, Remote Procedure Call (RPC), System Event Notification, Windows Management Instrumentation Driver Extensions, COM+ Event System, DCOM Server Process Launcher

If all of the services are correctly configured, you can try to delete and reset the download queue by deleting the following two files:

%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr0.dat

%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr1.dat

Now try to start the BITS service by going to the command prompt and typing in net start bits. This will reset the BITS transfer queue and hopefully allow the service to start properly. If not, then continue reading!

If you are running Windows Vista and you cannot start the Background Intelligent Transfer Service, you can download the BITS Repair Tool to fix any problems corrupted BITS files. This tool by Microsoft tries three different methods to reset BITS on Vista.

You can also check to make sure that a missing DLL file is not preventing BITS from starting properly. Go to Start, Run and type in the following command:

depends.exe %windir%\system32\qmgr.dll

The Windows Dependency Walker will pop up and you will get an error message if any of the required DLLs are missing. You also want to check the DLL dependencies for Windows Update:

depends.exe %windir%\system32\wuauserv.dll

If you simply get a window with a whole bunch of DLLs listed and no error messages that means all the appropriate DLL files for BITS and Windows Update are correctly installed on your system.

If you get an error about a DLL not being found or that is missing, then it is best to run System File Checker, which will copy back all of the original Windows DLL files. Go to Start, Run, and type in CMD. At the prompt, type in

sfc /scannow

reboot after it is done

Repairing registry permissions

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› Home › Windows XP › Reset the Registry and the File Permissions in Windows XP

Reset the Registry and the File Permissions in Windows XP

© Ramesh Srinivasan | Windows XP | 3rd June 2008

You may need to reset the registry and file permissions if you experience Access is denied error when installing a Windows XP Service Pack or update. (Example: Service Pack 3 setup error. Access is denied.)

Note: Access denied errors can also be caused by third-party applications, especially anti-virus or anti-spyware applications. So, make sure that you close all the anti-virus and anti-spyware utilities temporarily and then install the Service Pack. This helps in most cases. You should reset the registry and the file permissions only if necessary.

Resetting the Registry and the File Permissions

Using SECEDIT.EXE in Windows XP Professional

In Windows XP Professional, you may use the following secedit command-line to reset the file and registry permissions to defaults.

secedit /configure /cfg %windir%\repair\secsetup.inf /db secsetup.sdb /verbose

For more information, see article How to reset security settings back to the defaults.

Using SubInACL

For Windows XP Home Edition (and Professional Edition), you may use the SubInACL tool to reset the registry and file permissions. Download and then install the Subinacl.exe (~370 KB) from Microsoft. SubInACL is a command-line tool that enables administrators to obtain security information about files, registry keys, etc.

Open Notepad, copy the commands below and save the file as reset.cmd. Double-click the file to run it. This script file may take a long time to run. Registry and file permissions in your system should be reset.

cd /d “%ProgramFiles%\Windows Resource Kits\Tools”
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f
subinacl /subdirectories %SystemDrive% /grant=administrators=f
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=system=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=system=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=system=f
subinacl /subdirectories %SystemDrive% /grant=system=f

Note: If you’re seeing the error Service Pack 3 setup error. Access is denied when installing Windows XP Service Pack 3, to verify if the error is caused by incorrect registry permissions, open the file C:\Windows\Svcpack.log using Notepad and look for the text Access is denied or DoRegistryUpdates failed.