BITS service system can not find a solution for the specified file

I encountered a machine today, unable to windows update, help solve it. The situation is this: you can find the patch when using windows update, but stop downloading the patch and the patch is not downloaded. Check the service and find that the BITS service is missing. It can't be started after installation. If the problem comes, just fix it.

1. Install the BITS service: find qmgr.inf in the %windir%\\inf\\ directory, right click, install, start BITS installation, you may need to insert the CD during the installation process, please prepare the CD or i386 file in advance. . Another way to install the BITS service is to enter the following command in command line mode: %windir%\\System32\ undll32.exe setupapi, InstallHinfSection DefaultInstall 132 %windir%\\inf\\qmgr.inf, the principle is the same as looking directly, install Restart the server when you are done.
   
2. Start the BITS service manually, and if it starts up, it ends here. If it does not start up, you may be prompted to find the file specified, we need to do the following. In command line mode, enter the following command: Reg add HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\BITS\\Parameters /v ServiceDll /t REG_EXPAND_SZ /d %windir%\\System32\\qmgr.dll. Juyou will successfully recover from this step. The following steps are taken from the Internet. Please choose your own.
   
3. If the second step is not successful, in the command line mode, enter the following command: Reg add HKLM\\SYSTEM\\CurrentControlSet\\Control\\BackupRestore\\FilesNotToBackup, restart after completion, check if the service is restored.
   
4. In command line mode, enter the following command in order: regsvr32 oleaut32.dll regsvr32 jscript.dll regsvr32 vbscript.dll regsvr32 msxml.dll regsvr32 softpub.dll regsvr32 wintrust.dll regsvr32 initpki.dll regsvr32 cryptdlg.dll

   Restart after completion to check if the service is restored.
   
   

5. Delete the following directory: C: \\ Documents and Settings \\ All Users \\ Application Data \\ Microsoft \\ Network \\ downloader, after the completion of the restart, check whether the service is restored. Under
   
   

6. command line mode, enter the following command: sfc /scannow
   
   
   

   After six steps above, you should definitely solve this problem. This is the six steps Microsoft has given. The original text is in English.