Windows update (KB5034441) Error (0x80070643)

Imressive storage setup and curious. Why are there a tens of gigs of space marked as Free on disks 0, 5 and 6 (I suppose these are SSD drives)? Is this machine dual-boot? Do you have a Linux installed on it? O, I got it - you left 10% of free space for SSD overprovisioning. I am sure you can use about 1% of it for the RE partition :) I guess this is why Microsoft standard instruction with shrink did not work for you.

And list volume output please? And also would be nice to see reagentc /info output as well.

It seems a recovery partition is yet to be created on disk 0. There is 84GB of free space on it which of less than 1GB you can use for RE partition.

You can follow the instruction from Microsoft a bit tuned to your setup.

reagentc /disable
diskpart
select disk 0
create partition primary id=de94bba4-06d1-4d40-a16a-bfd50179d6ac size=996
gpt attribute=0x8000000000000001
format fs=ntfs label=WinRE
list partition
exit

Please note that size=996 part of the create partition command absent in Microsoft's instruction - this is because you already have a free space on your boot drive and you do not shrink an existing partition to the left to make one.

The next step is reagentc /enable. If that is successful then you can restart your machine and repeat attempt to install the KB5034441.

Good advice given for you to start over with the Recovery Partition. You need to make a Recovery Partition as you do not have one.

OK, I did a repair installation of Windows 11 Pro. An 846 MB Recovery Partition is now in place.

Disk Management now looks like this:

Unallocated space at the ends of SSD devices is Samsung Magician Over-Provisioning (~10%).

Unfortunately, File Explorer still shows a phantom Drive Z. I may hide it as you suggest, or just ignore it.

Thanks for your help and suggestions.

LEWCARVER, I successfully hid my phantom Z drive using MiniTool Partition Wizard.

I'm uncomfortable with using a work-around, but will live with it for now.

Thanks.

QSTIK. You may want to shut off Samsung Magician Overprovisioning (and whatever else is offered to upspeed your SSD). There are some warnings to shut down these SSD upspeeds in this Microsoft post to get Update KB5034441 to run and complete. I shut mine down (Crucial SSD) and other PCs that I have worked on for this problem. Likely the Magician is using the 84.19 GB Unallocated block of the drive (it is not really unallocated - yes it is Magic). It also may be the source of your mysterious Z Drive. If you don't want to see Z , hide it. It will not harm anything. Pretty sure it will be gone from File Manager / My Computer. It will still be visible in Disk Management.

Note: Running these SSD upspeeds IS a proven cause of trouble with completing the MS KB5034441 update. Hope the update is working for you now.

Not sure why you have so many Partitions. I have seen some users put their OS on a small SSD for speed improvements. There may be some kind of increase in speed that I don't know about or some file size limitations in the root of the drive that requires you to put your data in its own Partition? It is pretty unusual.

I have not had any noticeable increase in speed using these Magician / Mysterioso SSD upspeeds. They are Voodoo. Many others agree they are not worth the trouble.