Win8.1 update installation failed 80070020 solution

encountered win8.1 update installation failure 80070020 how to do? The following will tell you win8.1update installation failure 80070020 solution, many users said that can not install win8.1 update, how to solve it? I hope the following methods will help you.
Win8.1 Update has been officially released, but many users have encountered download problems and are currently unable to download from Windows Update. The Win8.1 user of the Microsoft Community Forum said that Windows 8.1 Update could not be installed, error code 80070020, and no other specific information was provided to the user.

Microsoft has not released a patch to solve the Win8.1 Update problem encountered by users, but users who cannot get the update can manually download the update package. Some users on the Microsoft Forum wrote:
“I have Try to install Win8.1 Update for a few hours. Earlier today I installed a series of files using Windows Update. Later I tried to install the upgrade file KB2919355 that appeared in Windows Update. The 800MB file download took 45 minutes and my network speed was 20 MB/s. The error code 80070020 appeared after 20 minutes of installation. Then I rebooted, but nothing changed or improved. ”
It is not clear how many users are experiencing this situation. Obviously, some Windows 8.1 users cannot upgrade properly.