Windows 10: Windows Update Assistant Error 0xa0000400

Discus and support Windows Update Assistant Error 0xa0000400 in Windows 10 Updates and Activation to solve the problem; Hey all, as title says, I'm getting this error when trying to run the update assistant to run the 1903 feature update. Unfortunately, it seems that I... Discussion in 'Windows 10 Updates and Activation' started by fenrir0wulf, Jun 29, 2019.

  1. Windows Update Assistant Error 0xa0000400


    Hey all, as title says, I'm getting this error when trying to run the update assistant to run the 1903 feature update. Unfortunately, it seems that I can't really find anything about this error so maybe my google-fu isn't strong enough.

    A few things to mention:

    This is happening on around 8-10 computers, this is on a work environment (so Win10 Pro).

    The error happens regardless of the Windows 10 version (some of them somehow never received some feature updates, one going as far as 1703, for some reason).

    The error happens regardless of the age of the computer, whether it's an older one from last year or one I received 3 days ago.

    The error happens regardless of whether the computer is domain linked or not, and by extension, regardless of if I'm using local admin, in-built admin or domain admin.

    Now, you're probably going to ask if there is a common link between all of them, and the answer is yes.
    All of them are Lenovo Thinkstation P520 (plus one P510, the one still on 1703).
    None of our other computers, including other Lenovos, like a few M710q or any of our Dell are getting the error and get the update perfectly smoothly.

    So obviously, the first question is: Is this a Windows issue, or a Lenovo issue?
    And then of course: How do I fix this error?

    As I said at the beginning, I can't find a whole lot on this error, and the few guides out are not very lengthy either.

    Yes, I've done the disk cleanup/windows update cleanup.

    As for the upgrade through ISO, I've tried, and I get another error, the "Incompatible hardware" one.

    No, we are not reinstalling everyone from scratch. Fvck that.


    One last thing that I noticed while writing this is this little detail: These workstations came with (and still have) Windows 10 Pro for Workstation, while the others have Windows 10 Pro. Normally, I wouldn't have paid attention to this but because it's only them, I thought it might be related to the issue? In fact, is that the issue? But as I said, no we are not reinstalling everyone so if it is, it's gonna have to be another solution.

    So yeah, what do?


    Windows Update Assistant Error 0xa0000400 [​IMG]

    Windows Update Assistant Error 0xa0000400 [​IMG]


    I'm including here the screenshots of the error messages (French).

    :)
     
    fenrir0wulf, Jun 29, 2019
    #1

  2. Error of 0xa0000400 updating windows7 to Windows 10.

    Hi Alex,

    It's unfortunate that you are facing this issue. We'll certainly assist you to resolve it.

    Share this information to assist you better.

    • How are you upgrading to Windows 10? Is it through Windows update or ISO media?
    We suggest you to refer the suggestions given by Andre Da Costa from the below link and check if it helps:

    free upgrade error code 0xa0000400

    Updating to Windows 10 error code 08x00704DD - 0x90016

    Reference : How to Fix Windows 10 Setup Failure:

    How to: Fix Windows 10 Setup Failure

    Hope this helps, for further assistance, you can post your query in Microsoft Community
     
    Rakesh Narayanaswamy, Jun 29, 2019
    #2
  3. pqraz Win User
    Windows 10 Upgrade Assistant Error 0xa0000400

    I have windows 8.1 Embedded Industry Pro, I reserved my windows 10 update prior to July 29th but have recieved no update notification since then so I tried using the Upgrade Assistant but recieved error code '0xa0000400'. How can I go about getting windows
    10 now considering I do have it reserved?
     
    pqraz, Jun 29, 2019
    #3
  4. Windows Update Assistant Error 0xa0000400

    Error of 0xa0000400 updating Windows 10.

    * Original Title: Error of updating

    I try update Windows 10 on my laptop, and then go something wrong.

    Code of problem is 0xa0000400. Can You help me please?
     
    Anela Štahan, Jun 29, 2019
    #4
Thema:

Windows Update Assistant Error 0xa0000400

Loading...
  1. Windows Update Assistant Error 0xa0000400 - Similar Threads - Update Assistant Error

  2. Windows Update Assistant Error Code 0x80070005

    in Windows 10 Installation and Upgrade
    Windows Update Assistant Error Code 0x80070005: The error comes up after the download of the 1903 update is complete/verified and the installation begins. I'm currently at version 1511 I know this gets asked a lot, but I have tried every single solution I could find on this forum to no avail, including the Subinacl one...
  3. Windows Update Assistant

    in Windows 10 Installation and Upgrade
    Windows Update Assistant: I was Trying to update My windows by Windows Update Assistant , Windows Update Assistant downloded these files in my computer ScreenShots :- [ATTACH]Now what i do to run update how to run these .ESD files ?...
  4. Windows 10 pro for workstation update failed with error code 0xa0000400

    in Windows 10 Installation and Upgrade
    Windows 10 pro for workstation update failed with error code 0xa0000400: I'm using windows 10 pro for workstation version 1809. And I want to update to version 1903 by using windows update assistant. But I received the error "0xa0000400" [ATTACH]...
  5. Windows Update Assistant Error!

    in Windows 10 Installation and Upgrade
    Windows Update Assistant Error!: Please see the attached screenshot. I continue to get this notification over and over again. I do not know why. I have updated my Surface Book to the latest updates. This is getting very annoying. Any suggestions?[ATTACH]...
  6. Fix Windows 10 Upgrade error 0xa0000400

    in Windows 10 News
    Fix Windows 10 Upgrade error 0xa0000400: [ATTACH] [ATTACH]While upgrading to any version of Windows 10 using the Windows 10 Upgrade Assistant or Windows 10 Media Creation Tool, some people may encounter an error code 0xa0000400. It becomes important for a user to keep their computer up to [...] This post Fix...
  7. windows update assistant

    in Windows 10 Installation and Upgrade
    windows update assistant: 1)Is it safe to use windows update assistant to update my computer to the latest version? 2)Should I use this to update my computer to windows 1809 version from 1803 version even though I have not received the update automatically? 3)Will it affect my computer's working?...
  8. Windows 10 update assistant error.

    in Windows 10 Installation and Upgrade
    Windows 10 update assistant error.: Windows 10 update assistant has downloaded,verified,updated Windows 10 77% or above but it is again and again opening media creation tool and even after sometime media creation tool is also showing error. I have deleted temporary and the tools files but the same is happening....
  9. error code 0x80070426 windows 10 update assistant

    in Windows 10 Installation and Upgrade
    error code 0x80070426 windows 10 update assistant: hi, 1. i am having a problem with the latest update on windows 10. when i get to the page where it says "getting your update ready" it comes to 100% and then thereis a page says something is wrong and gives a error code 0x80070426 i dont know why it is not letting me...
  10. Windows 10 Update Assistant Error 0x8007007e

    in Windows 10 Installation and Upgrade
    Windows 10 Update Assistant Error 0x8007007e: Hi everyone, I'm on Windows 10 and the Update Assistant keeps bugging me for months, saying that I'm getting error 0x8007007e. I tried disabling/uninstalling Avast Antivirus, didn't work. I've restarted. I've tried "sfc /scannow" but I get "Windows Resource...

Users found this page by searching for:

  1. error 0xa0000400

    ,
  2. 0xa0000400 workstation

    ,
  3. 0xa0000400エラー

    ,
  4. windows 10 1903 update error 0xA0000400,
  5. 0xa0000400