Media Creation Tool Error

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  1. Steve C's Avatar
    Posts : 5,283
    Windows 10 Pro 64 bit
       #1

    Media Creation Tool Error


    I just tried to use the Media Creation Tool in an admin account to create a USB installation drive and had the error below. Has anyone experienced this and solved the error?
    Media Creation Tool Error-image.png
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  2. FreeBooter's Avatar
    Posts : 3,199
    Windows 10 Pro 64-bit
       #2

    If you want you can download the Windows 10 ISO from Microsoft without using Windows 10 Media Creation Tool.

    Open the Internet Explorer and browse to Windows 10 Media Creation Tool website.

    Right click empty spot and select View Source and from Emulation tab select Apple Safari (iPad) from "User agent string" drop down box. Website should refresh after selecting Apple Safari (iPad) if it does not refresh the website to get a drop down box for downloading Windows 10 ISO.
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  3. Steve C's Avatar
    Posts : 5,283
    Windows 10 Pro 64 bit
    Thread Starter
       #3

    I fully formatted the USB stick, restarted the PC then the MCT worked fine.
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  4. sportsfan148's Avatar
    Posts : 839
    Windows 10 Home
       #4

    Steve C said:
    I fully formatted the USB stick, restarted the PC then the MCT worked fine.
    I'm glad it worked for you Steve. I got that very same error message a couple of weeks ago. I'd never had any problems using MCT before. I fully formatted the USB stick and restarted and it still didn't work for me. Ive switched over to using Diskpart method for creating the bootable flash drive but I still download the ISO using the MCT
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  5. Bree's Avatar
    Posts : 15,428
    10 Home x64 (2004) (10 Pro on 2nd pc)
       #5

    Steve C said:
    I just tried to use the Media Creation Tool in an admin account to create a USB installation drive and had the error below. Has anyone experienced this and solved the error?
    Yes, another poster had this problem which turned out to be because the USB had a gpt partition (previously created by Rufus).

    Bree said:
    I have now confirmed that the Media Creation Tool fails with error code 0x80004005 - 0xA001A if the USB you ask it to use has a gpt partition.



    After failure, the USB is left 'unalocated'. You can create a new simple volume using Disk Management to make it accessible again but, critically, its is STILL using a gpt partition layout. Only DISKPART or a tool like MiniTool Partition Wizard can make it MBR again.

    The MCT only fails after it has downloaded all the files it needs, verified them and created the media in preparation for copying it to the USB. It is not until this point that it attempts (and fails) to format the USB.

    Unfortunately, the MCT cleans up after itself at close, so you have to do the whole download over again next time you run it.
    USB flash drive --assign drive letter back to dynamic from static

    Steve C said:
    I fully formatted the USB stick, restarted the PC then the MCT worked fine.
    That would do it :)
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  6. sportsfan148's Avatar
    Posts : 839
    Windows 10 Home
       #6

    Bree said:
    Yes, another poster had this problem which turned out to be because the USB had a gpt partition (previously created by Rufus).

    USB flash drive --assign drive letter back to dynamic from static



    That would do it :)
    Hi Bree..that was me who had the exact same error in the thread you point to. I converted the USB flash drive back to MBR and created partition from scratch, formatted it etc. I'm not 100% sure though if I did a quick format on the flash drive or whether I changed it to Full Format. The OP here states that he Fully formatted the USB stick..so maybe that is the difference if I did a quick format as well as the GPT partition that had been originally created by Rufus. Just changing the GPT partition style back to MBR didn't work..the Media Creation Tool fouled again at the same point..(51% while creating the media) with the same screen as above but the last part of the error code was slightly different
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  7. Bree's Avatar
    Posts : 15,428
    10 Home x64 (2004) (10 Pro on 2nd pc)
       #7

    It wouldn't take a genius to add a check the selected USB for partition suitability at the beginning of the MCT instead of letting it fail right at the end. Maybe one of these days MS might get round to it...
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  8. Steve C's Avatar
    Posts : 5,283
    Windows 10 Pro 64 bit
    Thread Starter
       #8

    Bree said:
    It wouldn't take a genius to add a check the selected USB for partition suitability at the beginning of the MCT instead of letting it fail right at the end. Maybe one of these days MS might get round to it...
    That would require MS to adopt a reliable software QA procedure!
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  9. sportsfan148's Avatar
    Posts : 839
    Windows 10 Home
       #9

    Steve said he Fully formatted the USB flash drive and it sorted the problem out.
    I know there are a few methods to Format a USB flash drive in Windows.
    In Windows...there's, This PC and Right click on drive/select format and theres also the Disk Management option. For both of those do you just uncheck the "Quick" box on the format options?
    The other option is Diskpart...I'm not exactly sure what you type there for a Full format.
    Is any of these options better or recommended for a Full format or doesn't it matter? Do they all do exactly the same thing?
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  10. Steve C's Avatar
    Posts : 5,283
    Windows 10 Pro 64 bit
    Thread Starter
       #10

    sportsfan148 said:
    Steve said he Fully formatted the USB flash drive and it sorted the problem out.
    I know there are a few methods to Format a USB flash drive in Windows.
    In Windows...there's, This PC and Right click on drive/select format and theres also the Disk Management option. For both of those do you just uncheck the "Quick" box on the format options?
    The other option is Diskpart...I'm not exactly sure what you type there for a Full format.
    Is any of these options better or recommended for a Full format or doesn't it matter? Do they all do exactly the same thing?
    I always right click the drive in This PC, select Format and untick the Quick Format option.
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