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  1. #1
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    Windows 10 Reinstall.

    Help please.
    On my son's PC I upgraded to Windows 10 and then rolled back to Windows 7.

    If I now want to go back to Windows 10, how do I do this?
    I did create a Windows 10 installation disc from the W10 ISO file.
    Thanks
    Dave

  2. #2
    davidhk
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    If the Windows 10 you upgraded was activated before you rolled back to Win 7, then you have what they called Digital Entitlement.
    Digital Entitlement allows you to re-install the Same Windows 10 edition into the SAME computer anytime you want and as often as you want.
    No product key is required and Activation is automatic.

    You can use the Win 10 disk you created and do a Clean Install, in which case, when you are asked to enter the product key, you just use the SKIP or "I do not have a product key" option and continue.
    When installation is completed, activated will be automatic.
    Last edited by davidhk; 2016-07-21 at 06:12.

  3. #3
    davidhk
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    There is another method to re-install Win 10 over your Win 7.
    The advantage of this method is that it allows you to keep your settings, personal files and most of the apps/programs.

    However, you will need a 3rd party program. It gives you the MOUNT option which is NOT available in Windows 7.
    http://www.howtogeek.com/howto/windo...windows-vista/

    Once you have it installed, you can go to the following Microsoft iso download sites and download your version of Windows 1.

    *** note : you can use the same iso file you used to create the installation disk, if you still have the iso on file. If you do, then you don't need to download the iso file again. ***


    Tech Bench ( I prefer this one)
    https://www.microsoft.com/en-US/soft...load/techbench

    Media Creation Tool (MCT)
    https://www.microsoft.com/en-au/soft...load/windows10

    You can now perform the In-Place Upgrade Install :
    Right click at the iso file > click Setup.exe.
    Installation will begin.
    No product key is required.
    Activation is automatic.
    Last edited by davidhk; 2016-07-21 at 07:12.

  4. #4
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    Many thanks for the great info.
    Regards

  5. #5
    davidhk
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    You are welcome.

    Remember, your son's computer has the Windows 10 digital entitlement.

    You are free to reinstall the same Win 10 in the same computer anytime. The deadline of July 29th does NOT apply to you.

  6. #6
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    davidhk, another question please. The option Media Creation Tool (MCT), does this copy everything
    from Windows 7 to W, or does it do a clean install?

    I have also received the following message, Windows 10 will not run on this PC.
    !CPU : The CPU isn't supported (NX).
    Memory OK
    Disk space OK.
    What now?

  7. #7
    davidhk
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    RE: The option Media Creation Tool (MCT), does this copy everything
    from Windows 7 to W, or does it do a clean install?


    Both Tech Bench and MCT are for downloading Windows 10 iso files.
    It can be used for either Windows 7 or Windows 8/8.1
    It can be used to burn into a bootable media (DVD or USB) and use the media to do a Clean Install which, as the name implies, will not allow you to keep anything.
    It can also be used to do an In-pace Upgrade Install as described in my post #3 which will allow you to keep your files, settings and most of the apps/programs.

    After you have reinstalled Windows 10, you will have a folder under C drive and it is called Windows.old.
    Windows.old is the copy of your "previous operating system" which in your case will be your Windows 7. It wii be used if you want to go back to Windows 7 within 30 days of installing Win 10.
    However, since you have already created an installation disk of Windows 7, you can just delete the windows.old to save you some disk space.

    RE : I have also received the following message, Windows 10 will not run on this PC. !CPU : The CPU isn't supported (NX).

    1. If you are referring to the same computer which was upgraded to Win 10 and reverted back to Windows 7, then you can ignore that message.
    Unless you have made some significant hardware changes after reverting back to Windows 7. If so, I have no answer for you.

    2. If you are referring to a different computer, then I have no answer for that.
    Last edited by davidhk; 2016-07-21 at 09:39.

  8. #8
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    A clean install does not copy the W7 files onto W10, correct?

    I am still getting the compatibility problem.

  9. #9
    Super Moderator jwitalka's Avatar
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    As the error message says, Windows 10 (or Windows 8.1) requires a CPU with NX support. Do a google search on your CPU model number to see if it supports NX. If it doesn't, you can't install Windows 10 on it. If your CPU does support NX, make sure it isn't turned off in your BIOS.

    Jerry

  10. #10
    WS Lounge VIP Browni's Avatar
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    Check your UEFI/BIOS settings to see if there is an option to enable NX (may be called No Execute)

  11. #11
    davidhk
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    Quote Originally Posted by DaveBRenn View Post
    A clean install does not copy the W7 files onto W10, correct?

    I am still getting the compatibility problem.
    Correct. NOTHING will be copied from Win 7 if you perform a Clean Install.

    I cannot help you on compatibility issue you described.

  12. #12
    davidhk
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    Quote Originally Posted by DaveBRenn View Post
    Help please.
    On my son's PC I upgraded to Windows 10 and then rolled back to Windows 7.
    If we are talking about the same computer :
    1. Did you receive the same error message back then ?
    2. If yes, how did you manage to get Win 10 installed ?
    3. If no, did you make any significant hardware changes after you reverted back to Win 7 ?

  13. #13
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    The only thing I see in the BIOS i Execute Bit Support ---Disabled. This is in CPU Feature.
    Could this have something to do with it?

  14. #14
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    Hi David
    Sorry i missed your reply.
    1. No I never received the error message.
    2.I installed the W10 from the windows update icon shown in the tray
    The tray icon is still there but has a yellow caution on it.
    3. I never made any hardware changes.

    Very strange indeed.

  15. #15
    davidhk
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    Quote Originally Posted by DaveBRenn View Post
    Hi David
    Sorry i missed your reply.
    1. No I never received the error message.
    2.I installed the W10 from the windows update icon shown in the tray
    The tray icon is still there but has a yellow caution on it.
    3. I never made any hardware changes.

    Very strange indeed.
    And when you clicked at the "tray icon with the yellow caution on it", you got the message "Windows 10 will not run on this PC.!CPU : The CPU isn't supported (NX)." ?

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