Cant upgrade to windows 10 - code 80240020

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  1. Posts : 4
    window 7
       #1

    Cant upgrade to windows 10 - code 80240020


    hello

    i cant upgrade to windows 10, i tried using media creation tool also but didn't work.
    any ideas ?
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  2. Posts : 3,506
    Windows 10 Pro 64-bit 21H1 (May 2021 build 19043.1083)
       #2

    I found this solution. As far as I understand this error means that some installation files didn't download correctly. If that's the case, you can skip the Get Windows 10 utility and download the ISO from here. Then you should be able to mount it or burn to disk and upgrade to Windows 10. To mount it right-click on it and select Open with -> Windows Explorer. This will create a virtual CD-ROM with a new drive letter and mount the ISO, so you can start Setup from there.
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  3. Posts : 3,367
    W10 Pro x64/W7 Ultimate x64 dual boot main - W11 Triple Boot Pending
       #3

    The most likely reason for a 10 upgrade to fail? regardless of what error you see is either due to some type of incompatibility with a hardware present or you have an additional hard drive used for storage/backup purposes lacking any OS and where the 10 installer will end up placing the boot files and/or temp installation folders.

    I spend a full day trying everything to get 10 to go until finally reviewing the clean install guide for 10 seen at Windows 10 - Clean Install - Windows 10 Forums

    It was there I discovered that the two storage/backup drives here were seeing both the boot files on one and temp install folders ending up on the other! The 10 installer is easily confused compared to never having any worry with 7 or the 8 Customer Preview when tried in the past 5yrs.! I simply unplugged the first host/boot if trying out a second OS and never saw boot files, set up files end up on either of those two until 10 came along.

    When going to download 10 you will want to avoid the Single Language and N options if you are looking for the 10 Pro not Pro N or Home edition! The single language is strictly the Home edition. Those downloads are used to replace files on the Media Creation Tool's dual 32/64bit Home or Pro "Windows.iso" download when skipping everything else to see 10 saved to a folder on the drive.

    By cleaning out the 32bit and 64bit folders on the usb media made you can substitute from the 32 and 64bit folders on the dual Home and Pro ISOs in order to see a 4 in 1 usb stick made out of the dual flavor ISO. An 8gb or 16gb flash drive is required due to the increased size. Here all four downloads for both Home and Pro were first downloaded direct by way of the MC tool for seeing individual dvd burns as well as usb keys made up. The downloads run about 10 minutes each.

    Now to avoid the need to see a full upgrade install first but go right on ahead for a fresh clean install of 10 without worry about seeing 10 get activated you will also want to review the guide for that as well. Clean Install Windows 10 Directly without having to Upgrade First - Windows 10 Forums
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  4. Posts : 4
    window 7
    Thread Starter
       #4

    thanks very much.
    one questing i am thinking of bying a ssd disk and put the windows 7 there and then instal the 10
    if i do that, then windows 10 are available for free or not ?
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  5. Posts : 3,506
    Windows 10 Pro 64-bit 21H1 (May 2021 build 19043.1083)
       #5

    As long as Windows 7 is activated, you can upgrade to 10 and then activate. If you have activated Windows 10 once, then you can format, clean install and activate again (at the same computer of course).
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  6. Posts : 4
    window 7
    Thread Starter
       #6

    spapakons said:
    As long as Windows 7 is activated, you can upgrade to 10 and then activate. If you have activated Windows 10 once, then you can format, clean install and activate again (at the same computer of course).
    so i can put windows 7 in ssd disk like its a new computer and then upgrade to 10 ?
    great
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  7. Posts : 3,506
    Windows 10 Pro 64-bit 21H1 (May 2021 build 19043.1083)
       #7

    Yes, if you previously activated Windows 10 the key is stored in Microsoft's servers and your new Windows 10 installation will activate again. Just make sure you install the same version (Home or Pro).
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  8. Posts : 6
    Windows 10
       #8

    Even if you already installed Windows 10, youŽll be able to activated in an other computer
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  9. Posts : 3,367
    W10 Pro x64/W7 Ultimate x64 dual boot main - W11 Triple Boot Pending
       #9

    kostas96 said:
    so i can put windows 7 in ssd disk like its a new computer and then upgrade to 10 ?
    great
    You can see 10 go right up without any need for an upgrade over 7! I'm surprised no one mentioned the guide for this. Clean Install Windows 10 Directly without having to Upgrade First - Windows 10 Forums

    When upgrading from a previous version the previous version's key is then tied to the newer version. Thought you should know about that as well. Yet you still will want to review the guide on how to dual boot 10 with 7 or 8, 8.1. Windows 10 - Dual Boot with Windows 7 or Windows 8 - Windows 10 Forums
      My Computers


  10. Posts : 4
    window 7
    Thread Starter
       #10

    Night Hawk said:
    You can see 10 go right up without any need for an upgrade over 7! I'm surprised no one mentioned the guide for this. Clean Install Windows 10 Directly without having to Upgrade First - Windows 10 Forums

    When upgrading from a previous version the previous version's key is then tied to the newer version. Thought you should know about that as well. Yet you still will want to review the guide on how to dual boot 10 with 7 or 8, 8.1. Windows 10 - Dual Boot with Windows 7 or Windows 8 - Windows 10 Forums
    Maybe you haven't understand guys
    i am currently have Windows 7 ok and I can get Windows 10 cause I made "reservation"
    now what I am asking is
    if I do format on my disk and buy a new one and put Windows 7 there on the new disk.
    then can I then have Windows 10
    with what ever way .
    if I do clean install will activate
    cause of the serial number ?
    thanks
      My Computer


 

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