Update Error in Windows 10 21H1 ( OS Build : 19043.899 )

While Updating to 2021-03 Cumulative Update Preview for windows 10 version 21H1 for x64-based systems ( KB5000842 )

The following error is displaying

Download Error – 0x800f081f

Kindly resolve it at your earliest 

Regards ,

Bhargava B U

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Read tis thread, there is discussion about this same update issue.

Build 19042.906 and 19043.906 are available in RPC and Beta Channel - Microsoft Community

Update = Replace old bugs with new ones.

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Thanks Pauli for pointing OP to other thread.

To resolve, you will have to go back to previous version prior to .899 for the CU to install. Hopefully MS will correct this in April Patch Tuesday if we can even get them to admit there is an issue coming from .899

Regards,

Johnny

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Thanks Pauli for pointing OP to other thread.

To resolve, you will have to go back to previous version prior to .899 for the CU to install. Hopefully MS will correct this in April Patch Tuesday if we can even get them to admit there is an issue coming from .899

Regards,

I'm trying to track this down.

-Eddie

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Got the same error here, but during the installation problem: it will stuck at 20%, than rushes to 44%, finally to 100%, than the error is showed.

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Got the same error here, but during the installation problem: it will stuck at 20%, than rushes to 44%, finally to 100%, than the error is showed.Image

We've added a note to our blog post: 

Releasing Windows 10 Build 19043.906 (21H1) to Beta Channel | Windows Insider Blog

-Eddie

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I see I'm not the only one with this issue, thanks for getting MS involved

hopefully they will keep their word and issue a patch in April

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I see I'm not the only one with this issue, thanks for getting MS involved

hopefully they will keep their word and issue a patch in April

**I STIL HAV THE PROBLEM**           AL

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Hello Friends , 

I have 3 points to mention about this

Point 1 : this update - " 2021-03 Cumulative Update Preview for Windows 10 Version 21H1 for x64-based Systems (KB5000842) " was already Successfully installed on ‎16-‎03-‎2021 itself .

 in the below image 

but I do not know why it is trying to Download  &  install again and again ?

Point 2 : after this (KB5000842) update installation on 16-03-2021 , 

Servicing Stack 10.0.19041.903 is installed on 26-03-2021 , 

Both updates cannot be uninstalled in the control panel 

in the below image 

Point 3 :  As the website ( https://support.microsoft.com/en-us/topic/march-29-2021-kb5000842-os-builds-19041-906-and-19042-906-preview-1a58a276-6a0a-47a5-aa7d-97af2d10b16d ) 

says this update ( March 29, 2021-KB5000842 (OS Builds 19041.906 and 19042.906) Preview )

 is for the version 20H2 only and not for 21H1

in the below image

are these points valid ? and

But still, the error ( 0x800f081f ) is displayed after downloading and trying to install the KB5000842 update 

Regards ,

Bhargava B U

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As was stated on Page 1 of this thread by Pauli (with a link)

there is an issue with the update that is being investigated.

***********
*********

Please mark my posts as answers or helpful if they are.

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Point 1

This is not the first time that some CU for insider channels use same KB number more than one time.

That KB5000842 has been released 15th (build 19043.899) and 25th of March (build 19043.906).

Point 2

You can't uninstall those SSU's, but if you haven't clean up old windows update files it could be possible to uninstall that KB5000842 installed 16-03-21 which is shown in your screenshot.

Point 3

Only those CU's that are available for released versions (here v2004 and v20H2) are listed in that support page.

As already mentioned there is bug with this update and MS is working on fix for that.

Update = Replace old bugs with new ones.

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Last updated May 9, 2021 Views 4,319 Applies to: