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Windows 8 and 8.1 Forums


Upgrade Windows 8.1 Core to Windows 8.1 Pro

  1. #1


    Texas
    Posts : 1,018
    Windows 8.1

    Upgrade Windows 8.1 Core to Windows 8.1 Pro


    I have everything I need to install Windows 8.1 Pro over Windows 8.1 Core; however, I don't see a tutorial on doing this, so I'm, wondering if I'll get into trouble doing this. BTW, I know I cannot use my Windows 8 Core Product Key with Windows 8.1 Pro.

    I'd like to do a clean install, but UEFI kind of intimidates me (a lot!). Also, I already have a large number of programs on my computer, i.e., Office 2013, Nuance OmniPage Ultimate, Word Perfect Office, Logo Design Pro; you get the drift . . .

    All the way through Windows 7 Ultimate I have never hesitated to install a new operating system, but Windows 8/8.1 and these new UEFI "bios" are working in tandem to make me procrastinate . . .

      My System SpecsSystem Spec

  2. #2


    Posts : 1,723
    Windows 8.1 Pro


    Create a Backup first...
      My System SpecsSystem Spec

  3. #3


    Texas
    Posts : 1,018
    Windows 8.1


    Duhhhhhhhhhhhh, I hadn't even thought of that, but you're right; I must create a backup.
      My System SpecsSystem Spec


  4. #4


    Posts : 1,723
    Windows 8.1 Pro


    Did you buy a Pro Pack or are you doing it through 'Add Features...'?
      My System SpecsSystem Spec

  5. #5


    Texas
    Posts : 1,018
    Windows 8.1


    Quote Originally Posted by Edwin View Post
    Did you buy a Pro Pack or are you doing it through 'Add Features...'?
    Stand-alone Windows 8.1 Pro.
      My System SpecsSystem Spec

  6. #6


    Posts : 406
    8.1 Pro X64


    Take your time and explore using a uefi install, it works great, I used the below method with no issues

    UEFI Bootable USB Flash Drive - Create in Windows
      My System SpecsSystem Spec

  7. #7


    Texas
    Posts : 1,018
    Windows 8.1


    Quote Originally Posted by Dude View Post
    Take your time and explore using a uefi install, it works great, I used the below method with no issues

    UEFI Bootable USB Flash Drive - Create in Windows
    Thanks, Dude; I hadn't seen that one yet. As many times as I've pointed others to the tutorials and I couldn't even find what I needed. Sorta thwacks my credibility a bit, eh?
      My System SpecsSystem Spec

  8. #8


    Sydney, Nova Scotia, Canada
    Posts : 6,329
    Windows 8.1 Pro + MC 64 Bit


    I almost always recommend a clean install but in this case using Add Features may not be a bad way to go. If it accepts your Pro product code all of the Pro features will be unlocked for you to use on your current install. With no effect on your currently installed programs or Apps. Just something to consider anyway.

    If you do decide to do a clean install, as far as UEFI goes, you won't have, or shouldn't have to, mess with any BIOS settings. 8.1 is already installed so they should already be set as needed.
    Once you have your install media all setup have a look at this. UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with
      My System SpecsSystem Spec

  9. #9


    Texas
    Posts : 1,018
    Windows 8.1


    Quote Originally Posted by alphanumeric View Post
    I almost always recommend a clean install but in this case using Add Features may not be a bad way to go. If it accepts your Pro product code all of the Pro features will be unlocked for you to use on your current install. With no effect on your currently installed programs or Apps. Just something to consider anyway.

    If you do decide to do a clean install, as far as UEFI goes, you won't have, or shouldn't have to, mess with any BIOS settings. 8.1 is already installed so they should already be set as needed.
    Once you have your install media all setup have a look at this. UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with
    Thanks a bunch, Alpha!

    Although it may be a lot of trouble, I'm still inclined to go with a clean install. There's some sort of error message that pops up when I shut down that doesn't stay on the desktop long enough for me to read the whole first line, let alone the error code. It doesn't seem to eat very much, but I still don't like it. Under the circumstances I've described, would you still recommend Add Features? I think I know the answer, but . . .

    I just trotted over to the General forum and asked about the mystery error code.

    I have Windows 8.1 on a bootable jump/thumb/flash drive but I need to read a bit more before I wade in. Also, I need to back this system up so that if I get into trouble I can just restore it.

    Dang! StarFerret says she don' like retirement; it makes me too cautious.
      My System SpecsSystem Spec

  10. #10


    Posts : 406
    8.1 Pro X64


    Good luck, let us know how it goes.
      My System SpecsSystem Spec

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Upgrade Windows 8.1 Core to Windows 8.1 Pro

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