1.    05 Jul 2015 #1
    Join Date : Jul 2015
    Posts : 20
    Windows 8.1

    How to Upgrade Windows from 32 Bit to 64 Bit


    When I downloaded Windows 8 Pro a few years ago my PC only had 1GB of RAM, so it installed the 32 Bit version. I have since added another GB of RAM. When Windows 10 is released, will I be able to download and install the 64 Bit version, or am I stuck with the 32 Bit version on this PC?
      My ComputerSystem Spec
  2.    05 Jul 2015 #2
    Join Date : Jan 2014
    Oak Ridge TN, USA
    Posts : 24,523
    Windows 10 Pro x64

    Hi and welcome to the forums.
    To do that you will have to clean install the 64bit version. You can't upgrade the 32bit to a 64bit OS.

    Jeff
      My ComputerSystem Spec
  3.    05 Jul 2015 #3
    Join Date : Feb 2014
    Posts : 9,466
    Windows 10 Professional

    Quote Originally Posted by drfocus View Post
    When I downloaded Windows 8 Pro a few years ago my PC only had 1GB of RAM, so it installed the 32 Bit version. I have since added another GB of RAM. When Windows 10 is released, will I be able to download and install the 64 Bit version, or am I stuck with the 32 Bit version on this PC?
    Hi 'dr', welcome to W10F1

    What Jeff said, also, your system has to support 64bit architecture.

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    Download Windows 10 Insider Preview iso:

    http://windows.microsoft.com/en-us/windows/preview-iso

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      My ComputersSystem Spec
  4.    05 Jul 2015 #4
    Join Date : Jul 2015
    Posts : 20
    Windows 8.1
    Thread Starter

    Thanks for the quick response. I was really wondering if my 32 Bit Win 8 Product Key is going to work if I install the 64 Bit version of Win 10
      My ComputerSystem Spec
  5.    05 Jul 2015 #5
    Join Date : Jan 2014
    Posts : 1,395
    Windows 10 Pro (32-bit) 16299.15

    Quote Originally Posted by Edwin View Post
    What Jeff said, also, your system has to support 64bit architecture.
    ...also there need to be 64-bit drivers for your hardware. If it only came with 1GB, what was it running originally?

    I think that to keep your 8.1 licence, you'd need to upgrade in-place from 8.1 to Windows 10 when it becomes available on or after 29 July. Then once that's activated OK, Microsoft have said you'd be able to clean install - hopefully at that point you can download an ISO and switch to 64 bit, but I think noone outside Microsoft knows for sure yet.
      My ComputerSystem Spec
  6.    05 Jul 2015 #6
    Join Date : Jan 2014
    Oak Ridge TN, USA
    Posts : 24,523
    Windows 10 Pro x64

    Quote Originally Posted by drfocus View Post
    Thanks for the quick response. I was really wondering if my 32 Bit Win 8 Product Key is going to work if I install the 64 Bit version of Win 10
    No.. each version uses a different key.
      My ComputerSystem Spec
  7.    05 Jul 2015 #7
    Join Date : Jan 2014
    Posts : 1,395
    Windows 10 Pro (32-bit) 16299.15

    Quote Originally Posted by BunnyJ View Post
    No.. each version uses a different key.
    Why do you say that? In Windows 8.x the same key can install 32-bit or 64-bit, and 10 Preview has one key for both 32-bit and 64-bit.

    I'm still hopeful that the approach I mentioned above will work - but we need to know more about how the clean install after activation will work with the live release.
      My ComputerSystem Spec
  8.    05 Jul 2015 #8
    Join Date : Jul 2015
    Posts : 20
    Windows 8.1
    Thread Starter

    I have been dual booting the 64 Bit Win 10 on this PC, so it does meet the system requirements for that version.
      My ComputerSystem Spec
  9.    05 Jul 2015 #9
    Join Date : Jul 2015
    Posts : 20
    Windows 8.1
    Thread Starter

    Thanks everyone. I appreciate your help.
      My ComputerSystem Spec
  10.    05 Jul 2015 #10
    Join Date : Apr 2014
    Space coast of Florida
    Posts : 5,369
    Windows 10 Pro X64 16299.19

    You also asked this same question here: http://www.eightforums.com/installat...it-64-bit.html
      My ComputersSystem Spec

 


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