Windows Update Failed with Error 0x80070070

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Windows Update keeps your computer up-to-date with latest, recommended security updates and performance enhancements. As default, the scan is scheduled to run on a periodic basis. The updates help to deal with potentially unwanted files, malicious objects, fix programming bugs and improve your computer’s performance.

Sometimes, the update download-install process fails with the 0x80070070 error. The problem primarily arises when you don’t have sufficient disk space to download updates.
 

Download Diagnostic

You’re just 3 steps away from fixing this problem…

1. Download and install the Diagnostic

2. Run full scan

3. Perform system clean-up & repair

Estimated download time: 10 Seconds


 

Reset Windows Update Components

It may be possible that some of the Windows Update files and components are missing, corrupted. First, stop all associated services as you cannot delete/ rename the component files when they are in use by associated services. Then, fix problems of the DLL Registry entries.

1. In the Search Box, type “CMD.”

CMD-Keyword

2. Right click “Command Prompt” from Search Results; choose Run as administrator.

Opening-Command-Prompt-as-Admin

3. First, stop all Windows Update Services using below command:

  • net stop <Service Name>

One by one, let’s stop all the following services:

  • appidsvc
  • bits
  • cryptsvc
  • wuauserv

net-stop-appidsvc

4. Delete corrupted data files:

  • Del “%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr*.dat”

5. A sample command to rename a particular folder:

  • ren <full folder path> <prescribe new name>

Use below commands to rename Windows Update folders assuming they contain corrupted files:

  • Ren %systemroot%\SoftwareDistribution SoftwareDistribution.backup
  • Ren %systemroot%\system32\catroot2 catroot2.backup

6. UChange active directory to System32 folder:

  • cd /d %windir%\system32

7. Re-register entries of a Dynamic Link Library file:

  • regsvr32.exe <file name>.dll

Here is the long list of Windows Update DLL files to reregister:Register-Windows-Update-DLL-Files

Regsvr-atl-dll

8. It’s time to restore the default WinSock configurations:

  • netsh winsock reset
  • proxycfg.exe –d
  • netsh winhttp reset proxy

9. Let’s start all the stopped services again:

  • net start bits
  • net start wuauserv
  • net start appidsvc
  • net start cryptsvc
  • bitsadmin.exe /reset /allusers

10. Finally, type EXIT to quit the window.

11. Restart your computer to complete the troubleshooting process successfully.

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