Update problem (0x80070643)

Question

I tried downloading an update, but it says: There were problems installing updates, but we'll try again later. If you continue to encounter this message and want to search the Internet or contact the support department for information, this figure may help: (0x80070643).

I have Windows 10

Answer 1

Hi Dvir, This is Ramesh.

The KB5034441 update failing with the error code 0x80070643 is a known issue. You can fix the issue by resizing the Recovery partition to 750 MB or more.

Here's the Microsoft page that describes the problem:

https://learn.microsoft.com/en-us/windows/relea...

However, if you don't use Bitlocker, you can simply hide the update using the Microsoft diagcab tool here:

https://download.microsoft.com/download/f/2/2/f...

If you want to install the update anyway, please post back so that I can provide instructions for resizing the recovery partition.

Answer 2

Hi Ramesh Thank you for answering my question I want to install the update I would appreciate it if you could help me.

And regarding the diagcab tool that hides the update, I don't need this Windows update?

Answer 3

Hi Dvir,

The update KB5034441 addresses a WinRE Bitlocker vulnerability. Therefore, it can be hidden if you don't use BitLocker.

If you want to install the update anyway, read on:

You may use Microsoft's PowerShell script to automatically extend the Recovery partition.

See: How to Extend the Windows RE Partition Using PowerShell (VBScript credits: Microsoft Learn)

https://www.winhelponline.com/blog/extend-windo...

Note: Although the Microsoft script works perfectly and performs proper validations before resizing the recovery partition, it's generally a good idea to back up your data before modifying the disk layout.

(or)

To extend the partition _manually_, please reply back with the following information:

1. Post a screenshot of the Disk Management window (maximized).
2. From an admin Command Prompt, run these commands: reagentc /info reagentc /disable dir c:\windows\system32\recovery\ /a diskpart list disk sel disk 0 list part list vol

Post the output or screenshots here.

Answer 4

I saw on YouTube video explaining to do the same thing and it didn't help https://youtu.be/7J_wPCampdU?si=UVG45PI_fcHEpt7T

Answer 5

Dvir,

I don't know if the steps were executed correctly. Also, the disk and the partition numbers vary from system to system.

I need to see the outputs of the above commands to fix this. If not, you can simply hide the update, as I mentioned earlier.