We know that in general, the w764-bit flagship download system update installation is done in the background, and once we users received a hint about the update installation, it is mostly because of the background of this operation there is a problem, this is not, today, a user of the Win7 flagship computer Consulting said, Their Win7 flagship computer in the installation of updates when the error, prompted error code 80070020, then this failure how do we solve it? The following, small series on the detailed introduction of it!
The first solution: we can try restarting our Win7 flagship computer, and after we restart our computer, we run Windows Update again to install it to see if it solves the problem. If it is still impossible to solve the problem, let's try the second solution.
The second solution: We also press the Win7 flagship computer keyboard Win+r shortcut to open the computer's running window, in the Open Run window, we enter Msconfig and click Enter, in the Open System Configuration window, we will switch the interface to the start of this column, Then click the Safe Boot check box, "Network" and OK.
Once we've done that, we'll switch the interface to the System configuration dialog again, click Reboot, and restart the computer in a mode called Safe Mode with network connectivity. After you have started, run Windows Update again to install the update again.