Windows 10: How do I change Windows10 from 32-bit to 64-bit?

Discus and support How do I change Windows10 from 32-bit to 64-bit? in Windows 10 Installation and Upgrade to solve the problem; Hi Im new to tenforums and to 64bit setups but not new to building windows-32 systems. Built a system and here is what I am stumped with. Never owned a... Discussion in 'Windows 10 Installation and Upgrade' started by devtinagub, Oct 20, 2015.

  1. How do I change Windows10 from 32-bit to 64-bit?


    Hi Im new to tenforums and to 64bit setups but not new to building windows-32 systems. Built a system and here is what I am stumped with. Never owned a 64bit version of windows until I downloaded it from amazon just a week ago. But in order to download it I initially setup my system using the only other OS I own which is vista32bit from which I was able to do a win10-32 install no problem (which is how I am posting this now.). At the beginning of my attempt to do a fresh install of the 64bit version message says OS missing replace disks with OS disks or something like that. I do remember reading somewhere bios settings are very particular and have to be set but i cant find that again. I can give more details in next reply. Any help on this would be very appreciated.

    :)
     
    devtinagub, Oct 20, 2015
    #1

  2. How do I change from 32 bit Windows 10 to 64 bit?

    Hi Sam,

    Thank you for posting your query in Microsoft Community.

    I would request you to refer to very useful instructions provided by Andre Da Costa in the Wiki article below:

    How to: Switch from 32 bit versions of Windows to Windows 10 64 bit

    Hope this information is helpful. Please feel free to reply in case you face any other issues with Windows in future.
     
    Niranjan Manjhi, Oct 20, 2015
    #2
  3. SamColley Win User
    How do I change from 32 bit Windows 10 to 64 bit?

    I have recently upgraded from Windows 8.1 to Windows 10. The version I have installed is 32 bit and I have always had the 32 bit version of any previous Windows. However, Windows 10 takes at least twice as long to start up as 8.1 and ASUS have put me onto
    updates which may improve the startup time, but they are only available for Windows 10, 64 bit. How do I change my 32 bit version of Windows 10 to 64 bit?
     
    SamColley, Oct 20, 2015
    #3
  4. jds63 Win User

    How do I change Windows10 from 32-bit to 64-bit?

    jds63, Oct 20, 2015
    #4
  5. bobkn Win User
    All that I can think of is that you tried to run the X64 installer from within Win 10 X86 (32 bit).

    To install the 64 bit OS, you'll need to run a clean install from bootable media (usually a DVD or USB flash drive). You aren't allowed to run the 64 bit installer from within a 32 bit OS.

    I didn't think that Microsoft allows Win 10 to be installed as an upgrade over Vista. I don't know what would happen if you ran the installer from within Vista. Is that what you did?

    I was going to caution that MS doesn't allow a free upgrade from Vista to 10. From your reference to Amazon, I suppose that you purchased 10.

    Judging from the Win 10 X64 drivers available for your motherboard from MSI, you should have no worries about compatibility.
     
    bobkn, Oct 21, 2015
    #5
  6. Attached is a snip of my system info to prove it is x64 capable. I made a few
    attempts to do this but this is what i did when i got the os missing message. First a little background :
    Never owned 64bit OS until win10. But to order a download from Amazon I initially setup my system
    using the only other os I own which is vista 32bit. Next I successfully installed the 32bit version of win10 no problem. Then I created Win10-64-bit bootable usb on a 16gb usb 3.0 sandisk flash drive using diskpart command but when I try to install it from bios boot on a freshly formatted ssd drive it says
    "missing OS ". I think I just may have stumbled on something : everything i did was on
    my 32bit installation of win10, the creating of the usb drive and formatting of
    the ssd drive. Could this be the problem?
    How do I change Windows10 from 32-bit to 64-bit? [​IMG]
     
    devtinagub, Oct 21, 2015
    #6
  7. NavyLCDR New Member
    Sounds to me like the USB stick is not bootable. I would use Rufus to create it since you already have the ISO downloaded. Make sure to format the USB stick with FAT32 for maximum compatibility.
     
    NavyLCDR, Oct 21, 2015
    #7
  8. How do I change Windows10 from 32-bit to 64-bit?

    thanks for the tip i will definitely try rufus is i can find it for free. hope it works.
     
    devtinagub, Oct 21, 2015
    #8
  9. Again thanks so much this is the answer RUFUS rocks! While none of the other methods worked Rufus did the job and now I have win10-x64 system running as the attached file shows :

    How do I change Windows10 from 32-bit to 64-bit? [​IMG]
     
    devtinagub, Oct 21, 2015
    #9
  10. thanks navylcdr you helped tremendously I almost thought I would never see my system up to its full potential but thanks to you it is!
     
    devtinagub, Oct 21, 2015
    #10
  11. NavyLCDR New Member
    Glad it worked for you! Question, though...is your Windows 10 activated?
     
    NavyLCDR, Oct 21, 2015
    #11
  12. How do I change Windows10 from 32-bit to 64-bit? [​IMG]
     
    devtinagub, Apr 4, 2018
    #12
Thema:

How do I change Windows10 from 32-bit to 64-bit?

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