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Upgrading to Windows 8 64 bit from Win 8 32 bit


New Member
When I bought my PC, it came with 32 bit Windows Vista. I upgraded to Windows 7 32 bit and now I updated to Windows 8 32 bit.

I realized that my PC is a 64 bit capable machine but now that I have already installed Windows 8 32 bit, I was looking for options to upgrade to 64 bit version.

I was told that I can I can use the Key on 64 bit version and that I need to have a bootable DVD version of Win 8 64 bit. I am aware that I need to do a clean install.

My question is: now that I have already installed 32 bit, can I go ahead and install 64 bit windows 8?

Any problems due to licensing?

Thanks in advance.

My Computer

System One

  • OS
    Windows 8


Hello sjt2, and welcome to Eight Forums.

Yes, that's correct you will be able to use the same product key to activate the 64-bit Windows 8 on your PC without issue, and you will have to do a clean install with the 64-bit Windows 8.
To get a 64-bit Windows 8 installation ISO to be able to create a 64-bit DVD/USB with, you will need to download the ISO from any 64-bit Windows PC.
Hope this helps, :)

My Computer

System One

  • OS
    64-bit Windows 10
    Computer type
    System Manufacturer/Model
    Custom self built
    Intel i7-8700K OC'd to 5 GHz
    ASUS ROG Maximus XI Formula Z390
    16 GB (8GBx2) G.SKILL TridentZ DDR4 3200 MHz
    Graphics Card(s)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G7 27"
    Screen Resolution
    Hard Drives
    1TB Samsung 970 EVO Plus M.2,
    250GB Samsung 960 EVO M.2,
    6TB WD Black WD6001FZWX
    8TB WD MyCloudEX2Ultra NAS
    OCZ Series Gold OCZZ1000M 1000W
    Thermaltake Core P3
    Corsair Hydro H115i
    Logitech wireless K800
    Logitech MX Master 3
    Internet Speed
    1 Gb/s Download and 35 Mb/s Upload
    Internet Explorer 11
    Malwarebyte Anti-Malware Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    Linksys EA9500 router,
    Arris SB8200 cable modem,
    Lumia 1520 phone


New Member
There are no licensing issues, as long as you are installing Windows 8 64 bit on the same laptop for which you originally bought the 32 bit version. (Also you can have only one installation for the purchased license key).
In short you can use your same license key to install 64 bit Windows 8.
As far as installing 64 bit Windows 8 is concerned, just to let you know in case you are not aware that you don’t have to buy Bootable DVD media from Microsoft additionally.

Instead you can download the Widows 64 bit Evaluation version and install your legal copy of windows 64 bit by following the below steps:
1. Buy a license of Windows 8 from Microsoft site if you have not done so, already.
2. Download the Windows 8 Evaluation 64 Bit ISO image. You need to use your Windows Live Id to download this evaluation copy.
3. Download Windows 7 USB boot-able driver creator tool. Use this tool from Microsoft to create the boot-able USB stick or DVD.
4. Boot from the newly created USB/DVD and install the Windows 8 Evaluation version. Do not use your purchased Windows license 8 key to activate/register the Evaluation copy.
5. While running your Windows 8 evaluation copy, go to Microsoft site and download Windows 8 upgrade tool and just follow the instructions and download the Windows 8 by specifying you purchased Windows 8 license key.
6. When prompted to install, select create Windows 8 media option and you will be asked to specify the media type to create USB/DVD. Choose your preferred option. This should create a Windows 8 64 bit media for you.
7. Once Windows 8 media USB or DVD is created, just boot from it, and install your new Windows 8 64 bit legal version

My Computer

System One

  • OS
    windows 8 64 bit
    System Manufacturer/Model
    SonyVaio VGN-NS10J
    Core 2 Duo
    x86 64 bit
    Graphics Card(s)

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