Fix KB4056891 and KB4056892 download stuck at 99% issue and more

Microsoft has released a new Windows 10 update KB4056892(Build 16299.192) for Fall Creators Update systems. This update has fixed the recently discovered a significant chip-level security flaw in Intel processors. The new flaw in Intel Processors can allow an attacker to gain access to not just the kernel memory as well as the ‘entire physical memory’.

However, Windows 10 update KB4056892 download might be stuck at 0% or at 99% and may show elevated CPU or disk utilization for some unlucky users. This is a known issue and Microsoft is aware of it.

Fix Windows 10 update KB4056891 and KB4056892 download stuck 99%.

This workaround uses c:\temp and the x64 architecture as examples. Update these examples as appropriate for your environment.

  1. Download the appropriate version of KB4056892 for your device architecture from the here to c:\temp. Then run the commands in the steps below from the administrative command prompt.
  2. Expand the .msu file that you downloaded in step 1.mkdir c:\temp
    expand -f:* windows10.0-KB4056892-x64.msu c:\temp
  3. End the existing TrustedInstaller processes and install KB4056892 using the Deployment Image Servicing and Management tool.taskkill /f /im tiworker.exe
    taskkill /f /im trustedinstaller.exe
    dism /online /add-package /packagepath:c:\temp\Windows10.0-KB4056892-x64.cab
  4. (Optional) Delete the CBS logs from the Windows Logs directory.

del /f %windir%\logs\cbs\*.log

Microsoft is working on a resolution and will provide an update in an upcoming release.

We’ve extensively covered all the issue related the Windows 10 cumulative updates. Get more details from the link below.

Fix Windows 10 Update stuck, fails to install, blue screen