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  1.    29 Jul 2015 #1
    Join Date : Jul 2015
    沖縄県
    Posts : 121
    Windows 10 Pro

    [TUTORIALS]How to fix Windows10 Update Error code 80240020


    If you go to control panel windows update and got this code

    P.s Sorry I only have Japanese computer :/ but error code should be the same

    There are 2 method ,The method 2 is below
    ( I Recommend do the method 2 first )





    How to fin this problem
    1. Go to C:\Windows\SoftwareDistribution\Download and delete all files in that folder only the files in download folder

    not the download folder !

    2.open Command Prompt as admin and type this command "wuauclt.exe /updatenow"
    3.go to windows update you should see it will begin to download something


    4. After it download and install finished (Install may take 1 or 2 hours) restart the computer
    5.you will got windows 10 ready to upgrade




    ------------------------------------------------------------------------------------------

    Method 2 I just found this solution from Microsoft

    Source : Windows Update Installation Failure 80240020 - Microsoft Community

    P.s Do this method if you know what your are doing

    This is an expected message indicating that when installation begins it may require user interaction. This is the largest software upgrade event ever and we’re managing it so everyone has a great experience. We recommend waiting until your PC receives a notification to upgrade, and then following the instructions provided.
    Please note that there is no problem with your reservation or upgrade download. The upgrade download is not corrupt as some have stated, and you will be notified in the coming days or weeks when your device is ready to upgrade.

    If you are very eager to upgrade, tech savvy users with the above message can modify the following registry key to install immediately.

    Warning: Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.


    1. Locate the registry key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\OSUpgrade]
    2. It should exist, but if not, create it.
    3. Create a new DWORD (32-bit) Value with Name = "AllowOSUpgrade” (without the quotes), and set the Value = 0x00000001.


    Once the registry key is modified, close and reopen the desktop Control Panel, go to Windows Update and check for updates. You should now be able to click the Get Started button to upgrade to Windows 10.
    Note: Windows 8.1 users must go to the desktop Control Panel, and not the modern Windows Update UI.


    Last edited by Akane; 31 Jul 2015 at 14:53.
      My ComputerSystem Spec
  2.    29 Jul 2015 #2
    Join Date : Jul 2015
    Posts : 436
    Windows 10 Pro 64-bit

    I can't delete all the folders in C:\Windows\SoftwareDistribution
      My ComputerSystem Spec
  3.    29 Jul 2015 #3
    Join Date : Jul 2015
    沖縄県
    Posts : 121
    Windows 10 Pro
    Thread Starter

    Quote Originally Posted by nigelmercier View Post
    I can't delete all the folders in C:\Windows\SoftwareDistribution
    ONLY DELETE FILE IN C:\Windows\SoftwareDistribution\Download
      My ComputerSystem Spec
  4.    29 Jul 2015 #4
    Join Date : Jul 2015
    Posts : 60
    Windows 10 10586.218

    Quote Originally Posted by Akane View Post
    Restart computer first because it downloading something
    I did this but still error
      My ComputerSystem Spec
  5.    29 Jul 2015 #5
    Join Date : Jul 2015
    Posts : 31
    Windows 10 Pro

    Quote Originally Posted by nigelmercier View Post
    I can't delete all the folders in C:\Windows\SoftwareDistribution
    You can, but it will break your Windows Update. Then you have to fix it with Microsoft FixIt.
    You ONLY have to delete files inside C:\Windows\SoftwareDistribution\Download, no other folders.
      My ComputerSystem Spec
  6.    29 Jul 2015 #6
    Join Date : Jul 2015
    Posts : 436
    Windows 10 Pro 64-bit

    Quote Originally Posted by NoDeX View Post
    You can, but it will break your Windows Update. Then you have to fix it with Microsoft FixIt.
    You ONLY have to delete files inside C:\Windows\SoftwareDistribution\Download, no other folders.
    [Later] However I can delete (or move) the Download folder, and it has been recreated. Something wonderful is happening ...
      My ComputerSystem Spec
  7.    29 Jul 2015 #7
    Join Date : Jul 2015
    沖縄県
    Posts : 121
    Windows 10 Pro
    Thread Starter

    Quote Originally Posted by nigelmercier View Post
    [Later] However I can delete (or move) the Download folder, and it has been recreated. Something wonderful is happening ...
    Only delete file in C:\Windows\SoftwareDistribution\Download

    Don't move or delete the download folder itself :/
      My ComputerSystem Spec
  8.    29 Jul 2015 #8
    Join Date : Jul 2015
    Posts : 31
    Windows 10 Pro

    Yes, this is the way it should be - recreating when you check for updates. But you only need to remove files inside.

    After you check for update again, if it says no new updates, you better wait. I already ****ed up a few machines because of too many things posted on the net. The upgrade will come eventually.
      My ComputerSystem Spec
  9.    29 Jul 2015 #9
    Join Date : Jul 2015
    Posts : 20
    10

    I tried this on my 3 PC's and get some odd check PC button that does nothing, then upgrade status changes to we are validating your PC.
    I thought I just had incompatible computers, but the 87 people in my guild get the same so it seems as expected, not really compatible with much.
      My ComputerSystem Spec
  10.    29 Jul 2015 #10
    Join Date : Jul 2015
    Posts : 33
    windows 8.1

    Quote Originally Posted by Akane View Post
    If you go to control panel windows update and got this code

    P.s Sorry I only have Japanese computer :/ but error code should be the same





    How to fin this problem
    1. Go to C:\Windows\SoftwareDistribution\Download and delete all files in that folder only the files in download folder

    not the download folder !

    2.open Command Prompt as admin and type this command "wuauclt.exe /updatenow"
    3.go to windows update you should see it will begin to download something


    4. After it download and install finished (Install may take 1 or 2 hours) restart the computer
    5.you will got windows 10 ready to upgrade

    Should my folder look like this? (http://gyazo.com/cada90678da9c56fce186007b0487d9f)
    (http://gyazo.com/7a0b197bc6245a8e675b4d913be5fbba)
      My ComputerSystem Spec

 
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