Windows 8 and 8.1 Forums


Install Windows 8.1 over preinstalled non activated win 7

  1. #1


    Posts : 1
    windows 7

    Install Windows 8.1 over preinstalled non activated win 7


    hi, i just got a new computer, it came with windows 7 home premium pre installed, however it is not activated and it says i have 30 days to activate it.

    however i dont have a key as i didnt purchase the OS,

    instead i have ordered Windows 8.1 64Bit Operating System DVD English OEI/OEM International and my dvd disc comes tomorrow

    Click image for larger version

    so my question is, can i install windows 8.1 over windows 7? i would just put the disc in delete whats on the harddrive, format it and install my new OS right? just dont want in to any problems

      My System SpecsSystem Spec

  2. #2


    Posts : 11
    Windows 8.1 x64


    tinababy,

    You shouldn't run into any problems as you don't need an activated Windows 7 to perform a clean Windows 8 install. Here's a helpful guide for a Windows 8 install (just in case you need it):
    Clean Install - Windows 8
      My System SpecsSystem Spec

  3. #3


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    +1 to what Kasv posted. If you boot from the 8 DVD it doesn't matter what is on the drive. You can delete the existing partitions and then create new ones and wipe the existing OS off of the drive. Activated or not once you delete the partition its history. If you were to attempt an upgrade from the running Windows 7 you would likely get a "not activated" nag screen.
      My System SpecsSystem Spec

  4. #4


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    As the new MOBO's now have a uEFI/BIOS firmware.
    How to install Windows 64 bit on a uEFI/BIOS firmware:

    UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Help Forums
    or
    UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with
      My System SpecsSystem Spec

Install Windows 8.1 over preinstalled non activated win 7
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