Windows 8 and 8.1 Forums


Will I need to reinstall?

  1. #1


    Posts : 60
    Windows 8.1 pro

    Will I need to reinstall?


    I'm planning on replacing my motherboard and cpu(amd phenom 2 980/foxconn a9das) with and intel 3570k/msi g45.
    Will this require the reinstallation of windows 8?
    If so, how many times can I use my activation key?

      My System SpecsSystem Spec

  2. #2


    Posts : 5,707
    Windows 8.1 Pro


    I don't believe you'll need to reinstall, just reactivate. If Windows 8 works like 7 in this manner, you should be able to have 30 days to reactivate. You MIGHT be able to get away with it, as if you are just using that one license on that one PC and it's not being used elsewhere, it should just take reactivation and/or a call to Microsoft support and saying, "Whoa bro, I just need to reactivate."

    I'm not terribly sure, but maybe someone else might have the actual answer.
      My System SpecsSystem Spec

  3. #3


    Posts : 7
    Windows 8 Pro


    I think most software companies' stance is that pirates won't try to call in. If they do, they probably have some warning signs we don't know about to indicate they're using a pirated copy. I cannot say I've called in myself, but I would place bets that changing that hardware won't invalidate your copy.
      My System SpecsSystem Spec

  4. #4


    Posts : 60
    Windows 8.1 pro


    Sweet. Thanks guys. I've only ever upgraded from an amd based cpu/mb to a amd cpu/mb in windows 7 and required no reinstallation/activation.
    So for sure amd to intel will be the same?
      My System SpecsSystem Spec

  5. #5


    Posts : 141
    Win 7 & Win 8


    You are allowed to upgrade your hardware so long as it’s not completely new PC…
      My System SpecsSystem Spec

  6. #6


    Quote Originally Posted by chromatica View Post
    I'm planning on replacing my motherboard and cpu(amd phenom 2 980/foxconn a9das) with and intel 3570k/msi g45.
    Will this require the reinstallation of windows 8?
    If so, how many times can I use my activation key?
    Windows 8 may detect the hardware change and automatically install the right drivers. Or, you may be unable to boot into Windows. A clean install is safest, but it may be unnecessary. Re-activation should be necessary. I believe that there will be no grace period on that. (Even Windows 7 didn't give 30 days on a motherboard swap.) I have yet to do telephone activation on Windows 8, but if it's like 7, it'll take about 5 minutes.

    What sort of Windows 8 License do you have? if it's a System Builder license, you may move it and re-activate at will. If it's an upgrade license, you can also move it, although things might get a little sticky with the old OS that qualifies the upgrade.

    I can't imagine that you have a manufacturer's OEM copy, so you shouldn't be stuck with a license that Microsoft would refuse to activate on new hardware.
      My System SpecsSystem Spec

  7. #7


    Posts : 1,308
    Windows 8 enterprise x64


    Just for my curiosity, what model of G45 did you get ?
      My System SpecsSystem Spec

  8. #8


    Posts : 60
    Windows 8.1 pro
      My System SpecsSystem Spec

  9. #9


    Posts : 60
    Windows 8.1 pro


    Quote Originally Posted by bobkn View Post
    Quote Originally Posted by chromatica View Post
    I'm planning on replacing my motherboard and cpu(amd phenom 2 980/foxconn a9das) with and intel 3570k/msi g45.
    Will this require the reinstallation of windows 8?
    If so, how many times can I use my activation key?
    Windows 8 may detect the hardware change and automatically install the right drivers. Or, you may be unable to boot into Windows. A clean install is safest, but it may be unnecessary. Re-activation should be necessary. I believe that there will be no grace period on that. (Even Windows 7 didn't give 30 days on a motherboard swap.) I have yet to do telephone activation on Windows 8, but if it's like 7, it'll take about 5 minutes.

    What sort of Windows 8 License do you have? if it's a System Builder license, you may move it and re-activate at will. If it's an upgrade license, you can also move it, although things might get a little sticky with the old OS that qualifies the upgrade.

    I can't imagine that you have a manufacturer's OEM copy, so you shouldn't be stuck with a license that Microsoft would refuse to activate on new hardware.
    The license that was included with the $40 upgrade @microsoft.com
      My System SpecsSystem Spec

  10. #10


    I upgraded Win7 to Win8 PRO on Oct 28th. Last week my Gigabyte AMD785 motherboard failed. I replaced it with an ECS AMD 880 mb with different graphics and ethernet adapter. The Win8 automatically installed itself on the new hardware. I was amazed that win8 was able to find the new nic and then go online to update all the other hardware. I did have to reactivate by using the automated process via telephone. You enter a series of numbers and they give you back a set of numbers to allow the re-activation. The process asks how many pc's on which you have installed his copy of win8 and you must say "none" or it will not activate.
      My System SpecsSystem Spec

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Will I need to reinstall?
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