Windows Update issue (failed to install) , 0x80070643

Ary Ahmed 155

Dear All, kindly asking for help regarding Windows updates on our Windows 10 and Windows 11 computers , we have some computers not able to install monthly updates and stay on the retry state Error code is : 0x80070643 I have tried to fix Windows with sfc/ scannow , chkdsk c: /f cleaned the Windows update repositories reset the services the issue is still happening and Windows updates not get installed on some computers any idea? Thanks

flow_p 20 Reputation points

2024-01-23T08:18:52.1+00:00

I had same error when installing update KB5034441 which apparently the update have some issues. I found the solution from this forum https://answers.microsoft.com/en-us/windows/forum/all/update-kb5034441-fails-to-install/1b127728-67ce-4206-8978-b3b0e38044a8?rtAction=1705997118015
Jiří Šedivý 0 Reputation points

2024-01-24T11:19:59.9966667+00:00

https://support.microsoft.com/en-au/topic/kb5034439-windows-recovery-environment-update-for-windows-server-2022-january-9-2024-6f9d26e6-784c-4503-a3c6-0beedda443ca
Harold Patterson 15 Reputation points

2024-01-24T18:25:25.1466667+00:00

The kb5034439 update is for servers. The update I get for my laptop which downloads but fails to install is kb5034441. Does this information apply to personal computers as well?
Nagy Bence 0 Reputation points

2024-01-26T09:50:27.5433333+00:00

I have a recovery partition and i have 500mb free space in that partition. But i got the error message: 0x80070643 ERROR_INSTALL_FAILURE. Any idea why i got this? Should i expand that partition?
Paul Anderson 10 Reputation points

2024-01-27T00:30:29.5433333+00:00

Same problem here. I was able to install some updates on 23 Jan but continue no joy on 2024-01.
Alicia Amerson 0 Reputation points

2024-02-16T21:10:06.07+00:00

Other updates install but not 2024-01 Security Update for Windows 10 Version 22H2 for x64-based Systems (KB5034441).
Xathurax 0 Reputation points

2024-02-18T21:29:48.5733333+00:00

Still having problems has anyone gotten this downloaded. Im pretty sure this ruined my Bluetooth I can't use my Bluetooth anymore anyone else having Bluetooth issues?
Duda Salvato 0 Reputation points

2024-02-23T14:35:27.4+00:00

Check this link: https://www.linkedin.com/pulse/como-corrigir-erro-0x80070643-windows-update-por-meio-duda-salvato-2pl1f/
Eric Hammond 5 Reputation points

2024-03-01T02:02:02.3466667+00:00

I have read elsewhere, and now tried on several different computers, that a full re-install of Windows 10 from a fresh ISO download from Microsoft would fix this. It Does NOT.

I service a lot of client computers which are stuck on windows 10, and they all end up with this error. Their computers still work so far. But the error concerns (sometimes frightens) them.

Is this Microsoft's way of forcing people to buy new windows 11 systems?

I truly wish that someone of Microsoft's systems experts would take this seriously.
Yangsun Chen 0 Reputation points

2024-03-07T22:49:04.3233333+00:00

2023-10 (KB5001716) Successfully installed on 10/4/2023

But now 03/07/2024 keep trying to install same 2023-10 (KB5001716) and Failed -0x80070643
Shahseo 0 Reputation points

2024-03-10T09:16:56.5933333+00:00

The error code 0x80070643 can be a pain when updating Windows machines. Here are a few additional things to try and hopefully get those updates installed:

Double-check Windows Update Services: Make sure the Windows Update service, Background Intelligent Transfer Service (BITS), and Cryptographic Services are all running and set to automatic startup. You can check this by searching for "services.msc" and looking for those specific services.

DISM Scan: Run a DISM scan to repair potential system image corruption. Open a command prompt as administrator and type: DISM /Online /Cleanup-Image /RestoreHealth (press Enter after typing). This might take some time.

Run the Windows Update Troubleshooter: Microsoft provides a built-in troubleshooter that can diagnose and fix common update issues. Go to Settings > Update & Security > Troubleshoot and select "Windows Update" to run the troubleshooter.
JP:Callan 0 Reputation points

2024-03-14T07:30:04.8966667+00:00

What is the solution for users that have no recovery partition?

I received the update error every week with the last one on 02/21/2024, then no more attempts to install the fix. So for now it has stopped trying to install KB5034441.
Eric Hammond 5 Reputation points

2024-03-15T00:06:11.3733333+00:00

I have tried this on one of my computers to no avail. BUT, even if I can make it work, I support 20+ local computer users and this would be a time consuming nightmare.

Surely Microsoft can spare a couple of their highly paid staff to resolve this.
Rick Yeager 0 Reputation points

2024-03-24T00:59:40.0033333+00:00

I had enough space already, but increased it by 500 MB anyway to 1.15 GB.

The update still fails with the same error, 0x80070643.
Paulius Mačionis 0 Reputation points

2024-04-06T12:24:52.97+00:00

I'm still having the same 0x80070643 problem. Where there any updates made? Should i be waiting for Microsoft to fix it?

Accepted answer

John Krikawa 165 Reputation points

2024-01-24T20:59:45.2733333+00:00

Same issue on an extremely clean and new Windows 10 Pro installation. Flow_p's link to the already reported problem was useful. The inner solution was changing the recovery partition size. I followed this guide exactly and rebooted, and the update installed:
https://support.microsoft.com/en-us/topic/kb5028997-instructions-to-manually-resize-your-partition-to-install-the-winre-update-400faa27-9343-461c-ada9-24c8229763bf
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18 people found this answer helpful.
Erik Lundbye 0 Reputation points

2024-01-25T11:23:12.7133333+00:00

I first thought it helped, but it did not. Windows Recovery is not and can not be enabled on my PC. But there was a RE partition that could be deleted and extended.

Blarp 0 Reputation points

2024-01-25T17:29:59.0166667+00:00

This method probably works for most people, but when I tried it and got the part about selecting the system partition, there was a system partition, and then there was the boot partition my system is installed on, so I found another, easier solution using the free Minitool Partition Wizard, instructions here: https://www.northshore-it.com/tips/how-tos/manually-resize-your-recovery-partition/

Kevin Hulett 5 Reputation points

2024-01-27T02:48:42.34+00:00

This worked perfectly, I didn't even have to reboot after resizing the partition. I had re-formatted a machine today on 10 22H2 and ran into this issue in the first round of Windows updates. All the regular commands like sfc /scannow and DISM commands, restarting services etc. didn't work, and this solution worked perfectly. Thank you!

David 0 Reputation points

2024-01-27T04:42:57.2133333+00:00

Worked for me as well, even did everything that Kevin did beforehand like commands etc too. Easy to follow, thanks for the solution! Was scratching my head over it for weeks.

Jay Snively 5 Reputation points

2024-01-27T23:21:23.1933333+00:00

Step 4c says "To select the OS disk, run sel disk<OS disk index> This should be the same disk index as WinRE."

This is not clear to me. Could someone please tell me what I enter in the cmd window? Thank you

John S 0 Reputation points

2024-01-31T11:00:56.5766667+00:00

The size of the WinRE partition didn't change for me. Didn't work. Thanks anyway

Sylvain Maretto 5 Reputation points

2024-01-31T12:28:47.3366667+00:00

Hey Jay. You're supposed to choose the partition named System but it's very likely that you'll get an answer as you try to shrink that says: you can't shrink this active partition.

Xiaoyu Liu 5 Reputation points

2024-02-07T15:51:17.1233333+00:00

Hi Jay, the select disk step is basically check this link https://answers.microsoft.com/en-us/windows/forum/all/select-os-partition-index-windows-10/1639340f-7abe-4863-96a2-6af5c4641dff

Mats Berg 15 Reputation points

2024-02-07T20:09:37.2633333+00:00

Think this is a no issue for the common Windows user. This should be the programmers issue to solve. IF, this is a serious update that should be implemented on all Windows 10/11 computers in the world, it is not up for each user to "solve it" with "help" of some "magic solutions"! It is in the hands to the company that we pay to use the software... We should not even have to bother!! For the record. I have the same problem for a couple of weeks now for the update KB5034441 on a computer with Windows 10 Version 22H2 for x64-based systems..

Philip Herlihy 0 Reputation points

2024-02-13T20:24:43.4+00:00

Solution worked for me.

Jeff Schwarz 5 Reputation points

2024-02-17T02:52:07.48+00:00

Why am I changing a partition size? I do not trust myself to do this, so now I'm stuck with a broken Windows Update. Is that it?

ianken51 Someone 5 Reputation points

2024-02-17T08:15:01.99+00:00

I tried this convoluted and highly technical solution 3 times now. Although Windows reports succession resizing, it has had ZERO IMPACT on my dilemma. I’m also rather frustrated that Microsoft has made changes that have negative consequences and then, when they can’t fix their stuff up, issue a technical fix that most users cannot understand, let alone fix. I AM NOT PERFORMING A FRESH INSTALLATION JUST TO ASSUAGE THE MICROSOFT TECHNICIANS WHO CANNOT PERFORM THEIR JOBS.

Deepti S. Rao 0 Reputation points

2024-02-18T18:30:02.31+00:00

Thanks for sharing this link. I was able to resolve the issue in Windows 10 Home edition.

Darren England 0 Reputation points

2024-02-20T16:38:37.76+00:00

"No disk partition in focus" bit of a brick wall on my pc

Darren England 0 Reputation points

2024-02-20T16:44:36.67+00:00

This is all for a security update, is there a chance that my security is under threat while in the command prompt as admin, before I can update my security? Just asking.

Pedro Gonçalves 20 Reputation points

2024-02-29T15:16:55.1533333+00:00

Thanks!
Solved my problem. The Windows Update ran successfully after it.

Yuyo Chou 0 Reputation points

2024-03-10T05:21:42.96+00:00

Thank you. I had error 0x80070643 on a Server 2022 box and freed up 512 MB of space and recreated my recovery partition as described, which is now 1.1 GB. I was then able to install KB5034439 successfully.

Ian West 0 Reputation points

2024-03-24T20:15:02.58+00:00

Using these instructions destroyed my Windows installation so it would no longer boot. I have to completely re-install everything now. I was doing this because of a Windows Update error that would not go away (0x80070643). Thanks Microsoft!

Dan Svenhall 0 Reputation points

2024-04-09T11:55:52.6566667+00:00

This failed on my computer, running Windows 10 Business, OS-version 19045.4170.

I followed the instructions exactly and afterwards reagentc doesn't recognise it as a windows RE partition:

list vol

Volume ### Ltr Label Fs Type Size Status Info

Volume 0 C Windows NTFS Partition 475 GB Healthy Boot

Volume 1 SYSTEM FAT32 Partition 260 MB Healthy System

Volume 3 Windows RE NTFS Partition 1119 MB Healthy Hidden

DISKPART> exit

Leaving DiskPart...

PS C:\WINDOWS\system32> reagentc /enable

REAGENTC.EXE: The Windows RE image was not found.
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17 additional answers

Nagy Imre 40 Reputation points

2024-02-05T09:45:56.5166667+00:00

The same issue occurred in our organization; almost everyone (30+ people) experienced it.
We don't want to manually resize any partitions or resort to any other makeshift solutions. Instead, we will patiently await a professional fix from Microsoft.
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8 people found this answer helpful.
JNord 0 Reputation points

2024-03-09T23:19:44.3733333+00:00

Agree, we average users should not be manually having to do strange things to accommodate software updates. What gives?
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S.Sengupta 15,111 Reputation points MVP

2024-01-17T01:43:25.15+00:00
Go to Settings > Update & Security > Troubleshoot > Additional troubleshooters.

Select "Windows Update" and click "Run the troubleshooter." Follow the on-screen instructions.

Open "Command Prompt (Admin)."

Type the following commands, pressing Enter after each:

net stop wuauserv

net stop cryptSvc

net stop bits

net stop msiserver

Type ren C:\Windows\SoftwareDistribution SoftwareDistribution.old and press Enter.

Type the following commands, pressing Enter after each:

net start wuauserv

net start cryptSvc

net start bits

net start msiserver

In the elevated Command Prompt, type the following commands, pressing Enter after each:

sfc /scannow

DISM /Online /Cleanup-Image /RestoreHealth
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7 people found this answer helpful.
Erik Lundbye 0 Reputation points

2024-01-21T18:54:13.9066667+00:00

Couldn't run line 5. ren c: - - - - Access denied

Erik Lundbye 0 Reputation points

2024-01-21T19:01:19.4866667+00:00

I could run line 5 after the update window was closed.

Assim M-56 5 Reputation points

2024-01-22T17:11:04.0833333+00:00

This solution worked for you guys ?

Assim M-56 5 Reputation points

2024-01-22T17:33:05.8266667+00:00

Please i did every command as admin and then i restarted my pc, i get the update to download 100% and when installing at 0% the error (0x80070643) come again

Elad Levy 0 Reputation points

2024-01-23T08:05:01.0166667+00:00

Doesn't work.

Vítek Boháček 0 Reputation points

2024-01-23T17:06:40.51+00:00

thanks it worked

John S 0 Reputation points

2024-01-31T10:58:28.8066667+00:00

Didn't work for me. Thanks anyway.

Sir Grakky 0 Reputation points

2024-02-23T00:11:38.75+00:00

I did all that and more. I also have 859Mb Healthy recovery partitions. It's not me it's YOU Microsoft.
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Árpád Levente Kedei 10 Reputation points

2024-01-24T07:27:37.66+00:00

Resizing the windows recovery partition (+250 Mb) solved my problem whit this error.
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2 people found this answer helpful.
Dennis McAllister 0 Reputation points

2024-01-25T18:42:38.8433333+00:00

This is affecting all of my VM's... not sure I want to resize all of my production instances.

Николай Николаевич Фадеев 0 Reputation points

2024-01-28T19:33:47.65+00:00

В январе трижды предоставлял специалистам Microsoft доступ к рабочему столу. После ввода команды «Создать образ восстановления» в разделе 900 Мбайт регистрировалась ошибка. Так что проблема в другом. Предполагаю, следует использовать файлы обновления 2023 года и пересмотреть периоды обновления - не чаще 1 раз в месяц. Windows 7 я в течение 10 лет эксплуатировал без обновлений и все работало. В декабре 2023 года, когда все работало в Windows 10, я создал диск восстановления, чтобы его использовать, когда наступит полный крах. Но до разработчиков WhatsApp мне далеко: их сервера работают под управлением FreeDos - там таки евреи, а не идиёты. И совсем революционно: выпуск процессора i432 со входным языкам ADA и свободной разработкой операционной системы на этой основе. Programmers from all over the world, connect!

tphe prasetyo 0 Reputation points

2024-02-01T09:38:21.0666667+00:00

thanks work for me, use easeUs partition tool so easy

Tom Söderberg 0 Reputation points

2024-04-04T08:18:42.32+00:00

Already having partition size of 450MB, but still getting this error, so can't be the root cause.
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