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  1.    17 Sep 2015 #11
    Join Date : Aug 2015
    I'm in the ghetto
    Posts : 705
    Windows 10 Pro x64

    Quote Originally Posted by NavyLCDR View Post
    Why would you re-install Windows 8.1? The only reason to re-install Windows 8.1 is to gain activation for Windows 10, which you already have. Unless the Windows 8.1 disk that you have is Windows 8.1 Pro - and you have the product key for Pro.
    At the moment the OP is on Win10x86 when it should be x64. Win8.1 x64 has not been upgraded to Win10
      My ComputerSystem Spec
  2.    17 Sep 2015 #12
    Join Date : Jul 2015
    Posts : 9,128
    Windows 10 Pro

    Quote Originally Posted by WhyMe View Post
    At the moment the OP is on Win10x86 when it should be x64. Win8.1 x64 has not been upgraded to Win10
    And it doesn't need to be. x86 and x64 use exactly the same product keys and licenses regardless of if it is Windows 8.1 or Windows 10.
      My ComputerSystem Spec
  3.    17 Sep 2015 #13
    Join Date : Aug 2015
    I'm in the ghetto
    Posts : 705
    Windows 10 Pro x64

    Quote Originally Posted by NavyLCDR View Post
    Going from Home to Pro, and going from 32bit to 64bit are two entirely different operations. Going from 32bit to 64bit, the outcome is the same - you need a clean install. Since you have Windows 10 Home already activated on your computer, there is no need to go back to Windows 8.1 - all you have to do is clean install Windows 10 Home 64bit.
    Nice edit lol

    So you're saying you don't need to re-install Win8.1 even if the wrong version was originally upgraded? (Yeah - I learn something new every day)

    Edit: Don't answer - We are cross-posting here!!!!

    Edit2 : We are all cross-posting now!! (See the post below)
      My ComputerSystem Spec
  4.    17 Sep 2015 #14
    Join Date : Jan 2015
    SoCal, USA
    Posts : 463
    Windows 10 Home and Pro

    Quote Originally Posted by WhyMe View Post
    Nice edit lol

    So you're saying you don't need to re-install Win8.1 even if the wrong version was originally upgraded
    No, there was no wrong version, it was 32bit the entire time
      My ComputerSystem Spec
  5.    17 Sep 2015 #15
    Join Date : Jul 2015
    Posts : 9,128
    Windows 10 Pro

    Quote Originally Posted by WhyMe View Post
    Nice edit lol

    So you're saying you don't need to re-install Win8.1 even if the wrong version was originally upgraded? (Yeah - I learn something new every day)
    There is a difference between version and architecture. To change versions from Home to Pro, the OP needs a new product key for Windows 8.1 Pro. And, yes, he would need to reinstall Windows 8.1 Pro with the Pro product key.

    To switch architectures between x86 (32 bit) and x64 (64 bit), no new product key or license is required - only a clean install. And since he already has a license and the generic product key for Windows 10 - reverting back to 8.1 to switch architectures is not needed.
      My ComputerSystem Spec
  6.    17 Sep 2015 #16
    Join Date : Aug 2015
    I'm in the ghetto
    Posts : 705
    Windows 10 Pro x64

    @NavyCLDR - Please see the edits in my last post as we are going out of sync here and I'm all
      My ComputerSystem Spec
  7.    17 Sep 2015 #17
    Join Date : Jul 2015
    Posts : 9,128
    Windows 10 Pro

    Quote Originally Posted by WhyMe View Post
    Nice edit lol

    So you're saying you don't need to re-install Win8.1 even if the wrong version was originally upgraded? (Yeah - I learn something new every day)

    Edit: Don't answer - We are cross-posting here!!!!

    Edit2 : We are all cross-posting now!! (See the post below)
    and the summation of everything is post #15.

    This is the OP:
    Quote Originally Posted by 6185JGL View Post
    I have installed Win10. I got Win10Home 32 bit. I'm pretty sure I had 64bit Win8.1 but it's gone now so I can't check. Is it possible to upgrade to Win10 Pro 64bit?

    John
    He is talking about doing two entirely different operations. Changing versions from Home to Pro which is completely different and separate from changing architectures from 32bit to 64bit.

    To change versions from Home to Pro requires a new license, and thus a new Product Key - and for a free upgrade to Windows 10 PRO requires an activated installation of Windows 8.1 Pro.

    To change architectures from 32bit to 64bit does not require a new license, does not require a new Product Key, and does not require going back to Windows 8.1. But it does required a clean install of Windows 10.
      My ComputerSystem Spec
  8.    17 Sep 2015 #18
    Join Date : Aug 2015
    I'm in the ghetto
    Posts : 705
    Windows 10 Pro x64

    Quote Originally Posted by NavyLCDR View Post
    and the summation of everything is post #15.
    And I knew the answer from your post #9 but we went out of sync as we kept editing our respective posts. Anyhow, I've learnt something new today about the install process so I'm happy!
      My ComputerSystem Spec
  9.    17 Sep 2015 #19
    Join Date : Sep 2015
    Houston
    Posts : 18
    Win10
    Thread Starter

    I think I'll leave it as is. Win10 seems to be working OK. Why risk screwing things up. I don't use this laptop much. I installed Win10 on it to try it out before installing on my desktop.

    I noticed that when I enter my password, Win10 starts the moment I enter the last character- pushing ENTER is not required. Is that a bug or a feature? Not complaining.

    John
      My ComputerSystem Spec
  10.    17 Sep 2015 #20
    Join Date : Jul 2015
    Posts : 9,128
    Windows 10 Pro

    Quote Originally Posted by 6185JGL View Post
    I noticed that when I enter my password, Win10 starts the moment I enter the last character- pushing ENTER is not required. Is that a bug or a feature? Not complaining.

    John
    Password or PIN? Password, I have to hit enter. PIN I don't. Fingerprint is awesome!
      My ComputerSystem Spec

 
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