Windows update (KB5034441) Error (0x80070643)

I had the same issue and I followed the directions in the following article kb5028997 and recreated the partition with 1.5GB of space this allowed the update to complete.

That solved it for me.

For anyone else reading: it's very important to disable SSD over-provisioning on the OS drive using the SSD maker's tool or if you have Intel Optane (on the OS drive), make sure it's turned OFF (using the Intel app) before you resize the recovery partition to 1500 (1.5 GB), otherwise you will encounter problems or possibly data loss!

Please BACK UP important data saved on the Windows drive BEFORE YOU BEGIN, just in case.

You can re-enable Intel Optane or over-provisioning after resizing the partitions.

Follow the advice at your own risk.

When I tried to install the windows update "2024-01 Security Update for Windows 10 Version 22H2 for x64-based Systems (KB5034441)" I received the error code (0x80070643).

I have already tried, restarting my computer, waiting a bit before retrying, running a memory diagnostic check, checking all my drivers for updates, installing optional updates, and running a malware scan.

When I tried to run the windows update troubleshooter it said "diagnosing problems" but never fixed them and I was still unable to install the update after running the trouble shooter.

Any help would be appreciated.

The only solution I found and worked for me:

1. Download Windows 10 iso from Microsoft
2. Browse the ISO and run the "Setup" application.
3. Install windows and choose to upgrade.
4. Finish Windows Upgrade procedure.

when will Microsoft fix this once and for all?

any ideas?

Looks like ... Never! They don't even withdraw their lousy update...