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

Create a new Recovery partition as per the instructions step 5.

1. Create a new recovery partition.
   1. First, check if the disk partition style is a GUID Partition Table (GPT) or a Master Boot Record (MBR).  To do that, run list disk. Check if there is an asterisk character (*) in the “Gpt” column.  If there is an asterisk character (*), then the drive is GPT. Otherwise, the drive is MBR.
      1. If your disk is GPT, run create partition primary id=de94bba4-06d1-4d40-a16a-bfd50179d6ac followed by the command gpt attributes =0x8000000000000001
      2. If your disk is MBR, run create partition primary id=27
   2. To format the partition, run format quick fs=ntfs label=”Windows RE tools”
2. To confirm that the WinRE partition is created, run list vol
3. To exit from diskpart, run exit
4. To re-enable WinRE, run reagentc /enable
5. To confirm where WinRE is installed, run reagentc /info

Just so you know - this will generally fail as written if you're using MBR (and I suspect GPT as well)

The issue is - the steps for MBR are slightly out of order.

When you run create partition primary id=27, then do the format quick fs=ntfs label=”Windows RE tools” step, your partition will be reset to NTFS id of 07. Your reagentc.exe won't be able to find your new recovery partition. At least it didn't on my computer.

I recommend resetting the primary id back to 27 with a step 1.5: set id=27

Then - you should be good to go. You can verify that the recovery partition is set correctly by using Window's Disk Management tool.

Unfortuntely, still same message ! I'll wait the Microsoft Fix !

Wont install on all of my 4 pcs.

@Chililock wrote: the only way to enter recovery is from Media Creation Tool USB.

Not true. More than 2 consecutive restarts, or a Windows crash quickly after restarting should start into the Recovery Console.

Should I try using System Restore and restore to a system point on Jan 7th, prior to the updates?

That is an excellent idea. After, if the update fails, it fails, but your system should still restart normally.

A general note: before Microsoft released this security update, your computer was vulnerable to an exploit of the security issue. It still is vulnerable, but has that created an issue that now causes you sleepless nights?

If there is exploit code "in the wild", and given the wave of publicity about this update, do you hope that your anti-virus software supplier will have updated their software to block that exploit from running on your computer? Does that hope let you sleep soundly?

I have a bigger problem, after the update failed to install I tried restarting my laptop, not the system won't reboot. Now what do I do? Laptop won't enter recovery mode on it's own. The only way to enter recovery is from Media Creation Tool USB.

Any suggestions for getting my system up and running again? Should I try using System Restore and restore to a system point on Jan 7th, prior to the updates?