Windows 10 22h2 security update [KB5034441] fails to install with code: 0x80070643

Be careful with this!!

Since I have an MBR drive like you - when I followed these steps as you notated:

Then. still within DISKPART, since my disk-drive uses MBR,

I entered the command: create partition primary id=27

and then,k to format the partition, format quick fs=ntfs label=”Windows RE tools”

and then exit.

The quick format re-assigned the id of my new recovery partition to 07, instead of the 27 that the Restore Partition needs, and that you set above. This meant that when I turned the restore back on with reagentc /enable, the computer couldn't find the restore partition I had just created.

You should check to make sure that your new partition is actually a restore partition - a quick way to check it is to look at it in the Disk Management tool.

To fix it, I had to add an extra step - what I'm calling 5c:

5c. If your disk is MBR, run set id=27

You should now see the partition type as a "Recovery Partition" if you look in Disk Management.

Hope this helps!

Hi. This one seems to mask the update, not solve the root of the issue :(

What a massive **** this is!

So I followed the instructions to shrink the main OS Partition and re-create the Windows RE Partition to 1Gb. So I now have a Recovery Partition enlarged from 507Mb to 1025Mb...Great, well done me!

The thing is, after Step 8 in either link, as they're basically the same (they're just a copy/paste of a previous Windows instruction on KB5028997 to manually fanny around with the Recovery Partition to make it bigger), when I tried to restart the RE Agent I get a "Windows RE Image Not Found" error..great, another bloody rabbit hole to jump down, so how do I go about fixing that....well this seems to happen as the RE Agent can't find the recovery environment as I've just deleted it when I followed Step 4h to delete the Recovery Partition prior to re-creating it...right?? The laptop is running 10 Pro..so perhaps this is a "Pro" thing and not a "Home" thing, I can use "reagentc /setimage" but what's the path?? See previous sentence!

So I followed a ten forum article here: https://www.tenforums.com/general-support/141419-windows-10-missing-recovery-partition-4.html

This entails rebuilding the RE Partition...download a Windows 10 22H2 ISO, then a process to extract and install the WinRE component onto your current install. Which solved THAT problem, only now the RE Agent reports that my Recovery Environment is now on my main OS Partition not the (newly created) RE Partition....I've not yet figured out a way to reset the image to actually "move the RE to the RE Partition and to be honest, I can't be bothered; it's an older laptop, only 1 CPU generation from being Win11 compliant, that I'm actually using as a Media Server as the telly in my bedroom is not a Smart one and thus does not have any streaming apps (or apps of any kind) so the laptop serves that purpose (why buy a Fire Stick/Chromecast/whatever when this thing can do the job without any purchasing of extra **** involved!!).

But at least this troublesome Security Update is now installed....Yay!! Here's to the next update taking 2 hours (plus 3 days research) out of my time...for 1 (that's right, ONE) Laptop!! Good job I'm not in full time employment and have a family....oh..wait!!! Good luck all you device admins with your many thousands of devices to "sort"!

I Reached out with support, was given Troubleshooting File that Fixed my Issue..
I Clicked "Hide Updates" and Checked in the Security Update, Fixed it for me..

https://download.microsoft.com/download/f/2/2/f22d5fdb-59cd-4275-8c95-1be17bf70b21/wushowhide.diagcab https://download.microsoft.com/download/f/2/2/f22d5fdb-59cd-4275-8c95-1be17bf70b21/wushowhide.diagcabHopeHope It helps anyone else..
My Issue was on Windows 10..

Yep, this worked for me too, thank you very much :)

2024-04 Security Update for Windows 10 Version 22H2 for x64-based Systems (KB5034441)

Download error - 0x80070643

Well all the instructions of below John DeV

• Independent Advisor do not work in fact the above error will leave your windows where you cannot update until this error is fixed.
• So be careful.
• I consider this is the last straw for Microsoft of where my computer is not operating as a said system for business and personal comfort and safety.
• Onto a Mac at least I can turn it on and work without all the bugs and errors of windows. Windows is no longer user friendly and so much for windows 10 will be the last windows.
• No resolution but it leaves your windows without the option to update- always return to error.