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KB4577671 causes update errors with Windows 10 1903/1909
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Published onOctober 13, 2020
published onOctober 13, 2020
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Key notes
TheOctober Patch Tuesday updateswere just released so everyone is looking at the changes affecting their OS.
The most important features were applied to all the versions ofWindows 10, but of course, there are major differences between the versions, especially the older ones, Windows 10 v1507, and the newest, Windows 10 v2004.
As you might have guessed, some versions of Windows 10 have received more attention, while others turned up to have even more issues after the update.
That’s precisely the face withKB4577671, this month’s cumulativeupdatetoWindows 10 v1909.
KB4577671 may remove some optional features
This patch may have the same effect on Windows 10 version 1903, not only v1909 and the issue produces the same effect.
Microsoftstates in the release notethat when you’re trying to update to both above mentioned Windows 10 versions, you could receivea dialogue with the titleWhat needs your attentionat the top.
This dialogue will also be accompanied by the error,Continuing with the installation of Windows will remove some optional features.You may need to add them back in Settings after the installation completes.
This error will appear when trying to update from an older Windows 10 version to versions 1903 or 1909.
Microsoft also specifies the possible cause of this issue:
You might receive this compatibility warning when LOCAL SYSTEM accounts are blocked in a firewall from accessing the internet via HTTP.
This is caused by the Windows 10 Setup Dynamic Update (DU) being unable to download required packages.
The Redmond giant didn’t provide a solution for this problem but has promise to find one and publish it in the next update.
It is important to understand that whether or not a certain cumulative update comes with a few issues,it is important to install themnonetheless forsecurityreasons.
Of course, if you want to avoid any problems while applying theupdates, you should followa few stepsin order to apply thesepatches, otherwise, they may end up needing to use theWindows Update Troubleshooter.
Those of you running this version of theOSshould nevertheless get this update as soon as possible at least for thesecurityimprovements.
To do that, simply head over tothis article we’ve createdwhere you can read the changelog of all other cumulativeupdates, as well as get direct download links to the requiredupdates.
However, you can also read the full history of thePatchTuesday changelogs inthis complete list.
What are your thoughts about this cumulativeupdate? Let us know if you’ll be applying theupdateas soon as it becomes available in your region by leaving us a message in the comments section below.
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More about the topics:patch tuesday,windows 10,windows updates
Claudiu Andone
Windows Toubleshooting Expert
Oldtimer in the tech and science press, Claudiu is focused on whatever comes new from Microsoft.
His abrupt interest in computers started when he saw the first Home Computer as a kid. However, his passion for Windows and everything related became obvious when he became a sys admin in a computer science high school.
With 14 years of experience in writing about everything there is to know about science and technology, Claudiu also likes rock music, chilling in the garden, and Star Wars. May the force be with you, always!
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Claudiu Andone
Windows Toubleshooting Expert
Oldtimer in the tech and science press, with 14 years of experience in writing on everything there is to know about science, technology, and Microsoft
