Windows 10 Media Creation Tool Error: 0x80042405 - 0xA001A

Anonymous
2017-11-16T13:39:26+00:00

Greetings,

Recently, I have seen many people inquiring about this error regarding the Media Creation Tool. I myself got this error when I try to create a bootable USB drive (aka Create an Installable Media).

Here's what I tried:

Reformatting USB drive to FAT32

Deleting files

Tried to locate and run Setupprep.exe (I couldn't find this file in C:\$Windows.~BT\Sources or anywhere)

Change Startup Type of Update-Related Services (Startup Type: Manual -> Automatic)

Uninstalled and Reinstall Windows 10 Media Creation Tool

Made sure my USB is above 8Gb as instructed by the tool (it is 15Gb)

The Fix (for me at least):

1. Downloadthe Windows 10 Media Creation Tool directlyinto the USB drive that you want to use as a bootable device (meaning you download the Tool into the same USB you chose to use as an Installation Media). If you already downloaded the tool on your PC's Desktop, copy it into your USB.

2. Run the Tool directly from your USB, meaning you open File Explorer, locate the MediaCreationTool.exe in your USB and double-click to run it.

The installer should then create an Installation Media/Bootable USB.

Hope this helps!

Cheers,

Tom

Windows for home | Windows 10 | Install and upgrade

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2018-06-02T10:41:44+00:00

    Just boots my usb out for a few secs at 56% and then gives an error..

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  2. Anonymous
    2018-06-07T14:45:14+00:00

    Moving it to the USB drive and running it as administrator still doesn't work in my case.  I've tried 4 different USB sticks on 3 different computers over 2 different internet connections.

    Please

    Microsoft

    Just

    Sort

    Your

    Code

    Out

    Does anyone know where you can download the old version or just one that actually works?

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    4 people found this answer helpful.
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  3. Anonymous
    2018-06-07T14:55:03+00:00

    Moving it to the USB drive and running it as administrator still doesn't work in my case.  I've tried 4 different USB sticks on 3 different computers over 2 different internet connections.

    Please

    Microsoft

    Just

    Sort

    Your

    Code

    Out

    Does anyone know where you can download the old version or just one that actually works?

    Was this answer helpful?

    0 comments
  4. Anonymous
    2018-06-07T14:57:29+00:00

    Sorting out your buggy community posting code wouldn't be a bad shout either....

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    1 person found this answer helpful.
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  5. Anonymous
    2018-06-07T17:43:55+00:00

    I tried 3 times before I realized that I was not telling UAC that it is alright to make changes. I just did not see it flashing on the taskbar. I know this is something simple but sometimes it is the simplest things. I was to finally able to make the usb flash drive from media creation tool after finally seeing UAC flashing on the taskbar. Hopefully this is what the problem is and will help. Also check to see if controlled folder access is on in Defender and toggle it off if it is.

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