🛠 Fixing KB5034441 Update Error (0x80070643)

This guide walks you through resizing the Recovery partition and re-enabling WinRE to resolve the update error.

Step 1: Disable WinRE

Open Command Prompt as Administrator and run:

reagentc /disable

[Insert screenshot of Command Prompt running reagentc /disable]

Step 2: Open DiskPart and Shrink OS Partition

Run the following commands:

diskpart
list disk
sel disk 0
list part
sel part 3
shrink desired=300 minimum=300

[Insert screenshot of DiskPart shrinking partition]

Step 3: Delete and Recreate Recovery Partition

Run:

sel part 4
detail part
delete partition override
For GPT Disks Run:create partition primary id=de94bba4-06d1-4d40-a16a-bfd50179d6ac
gpt attributes=0x8000000000000001
format quick fs=ntfs label="WindowsRE"

[Insert screenshot of partition creation and formatting]

f your disk is MBR, runcreate partition primary id=27 set id=27

List par Exit Diskpart:Exit

Step 4: Re-enable WinRE

Run:

reagentc /enable

[Insert screenshot of successful reagentc /enable]

✅ Final Check

Run:

reagentc /info

Confirm that WinRE is enabled and pointing to the new recovery partition.

[Insert screenshot of reagentc /info output]

Guide based on [Microsoft Q&A thread](https://learn.microsoft.com/en-ca/answers/questions/4017347/fixing-the-kb5034441-update-error). Adapted for modular documentation and client support.