Why does the Update download stuck at 100% ?

Question

I had seen the update in my windows (Windows 10 version 2004 KB4579311). I had downloaded it. But it was stuck at 100%. But when connected to internet, it started consuming data... Why it's stuck ?

Answer 1

Try rebooting the system to see if it will complete the update on its own. If that fails, then clean Windows Update Cache

Open a command prompt with Administrative Privileges, run the following:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver

Open File Explorer go to the C:\Windows\SoftwareDistribution\Download folder.
Press CTRL+A and press Delete to remove all files and folders.
Go to C:\Windows\SoftwareDistribution\DataStore
Press CTRL+A and press Delete to remove all files and folders.

Back to the command prompt to restart all the services

net start wuauserv
net start cryptSvc
net start bits
net start msiserver

The try the KB update again.

-Regards, Sean Liming

Answer 2

@Gowri Sankar : If the update started installing post 100% download and then hung, you can check the CBS log files from C:\Windows\Logs\CBS.

Also, for more details about download and install, you want to generate a WindowsUpdate.log

Open an admin PowerShell and run: "Get-WindowsUpdateLog"
The resulting file will be saved to the desktop of running user.

Answer 3

Hello,

You can try installing KB4579311 manually using Update Catalog:

https://www.kapilarya.com/manually-download-and-install-windows-updates-in-windows-10

Let us know if this helps!

Note: Included link in this reply refers to blog post by a trusted Microsoft MVP. 

Answer 4

Please open a new thread.

Use the applicable tags:
Windows-10-general
Windows-10-setup
Windows-11-general
etc.

Clarify in the new thread whether the problem is failure to upgrade 10 to 11 or whether it is a Windows 11 update failure.

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