An update is available to fix a Background Intelligent Transfer Service (BITS) crash on a Windows Vista-based computer

Method 1

1. Enable the View Hidden Files option. To do this, follow these steps:
   1. Click Start , click Control Panel, click Folder Options, and then click the View tab.
   2. Click Show hidden files and folders, and then click OK.
      
2. As a system administrator, locate the Programdata\Microsoft\Network\Downloader folder, and then delete all files that have a file name that begins with Qmgr. To do this, follow these steps:
   1. Click
      Start , type \Programdata\Microsoft\network\downloader in the Start Search box, and then press ENTER.
   2. In the Downloader window, select and then delete any files that begin with Qmgr. For example, delete the following files:
      • Qmgr0.dat
      • Qmgr1.dat
      Notes
      • If the files are not deleted, restart the computer in safe mode without networking. To do this, use Method 2 or Method 3.
      • If the files are deleted successfully, immediately open Windows Update, and then install the latest updates.

Method 2

1. Restart the computer.
2. Press the F8 key as the computer restarts.
   
   Note You have to press the F8 key before the Windows Vista progress indicator appears.
   
3. When the Advanced Boot Options menu appears, use the arrow keys to select Safe Mode, and then press ENTER.
   
4. Enable the View Hidden Files option. To do this, follow these steps:
   1. Click Start , click Control Panel, click Folder Options, and then click the View tab.
   2. Click Show hidden files and folders, and then click OK.
      
5. As a system administrator, locate the Programdata\Microsoft\Network\Downloader folder, and then delete all files that have a file name that begins with Qmgr. To do this, follow these steps:
   1. Click
      Start , type Programdata\Microsoft\network\downloader in the Start Search box, and then press ENTER.
   2. In the Downloader window, select and then delete any files that begin with Qmgr. For example, delete the following files:
      • Qmgr0.dat
      • Qmgr1.dat
6. Immediately open Windows Update, and then install the latest updates.

Method 3

1. Restart the computer in the safe mode without networking. To do this, follow these steps:
   1. Exit all open programs.
   2. 
      Click
      Start , type
      Run
      in the
      Start Search
      box, and then press ENTER.
      
   3. 
      Type msconfig, and then click
      OK.
      
      
      
      The System Configuration Utility appears.
      
   4. Click the
      Boot
      tab, click to select the
      Safe boot
      check box, click to select the
      Minimal
      check box, and then click
      OK.
      
   5. Restart the computer when you are prompted.
2. Enable the View Hidden Files option. To do this, follow these steps:
   1. Click Start , click Control Panel, click Folder Options, and then click the View tab.
   2. Click Show hidden files and folders, and then click OK.
      
3. As a system administrator, locate the "Programdata\Microsoft\Network\Downloader" folder, and then delete all files that have a file name that begins with Qmgr. To do this, follow these steps:
   1. Click
      Start , type \Programdata\Microsoft\network\downloader in the Start Search box, and then press ENTER.
   2. In the Downloader window, select and delete any files that begin with Qmgr. For example, delete the following files:
      • Qmgr0.dat
      • Qmgr1.dat
4. Restart the computer in normal mode. To do this, follow these steps:
   1. Exit all open programs.
   2. 
      Click
      Start , type
      Run
      in the
      Start Search
      box, and then press ENTER.
      
   3. 
      Type msconfig, and then click
      OK. The System Configuration Utility appears.
      
   4. On the Boot tab, click to clear the Safe boot check box, and then click OK to restart the computer.
   5. Restart the computer when you are prompted.
5. Immediately open Windows Update, and then install the latest updates.