downgrade from original W10 to W7

sdruws
sdruws Member Posts: 35 Enthusiast WiFi Icon

 

I purchased an ACER AIO which came with original W10 home.

No chance to downgrade to W7.

I had with me a genuine W7.

How can I uninstall W10 and reinstall my genuine W7 ?

I do not care to lose all files, as I have them in an external drive.

Answers

  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer

    AIO model?

    I'm not an Acer employee.
  • sdruws
    sdruws Member Posts: 35 Enthusiast WiFi Icon

    model Aspire z3-715

  • sdruws
    sdruws Member Posts: 35 Enthusiast WiFi Icon

    Furthermore S/N ***

     

    [edited for privacy-please do not post personal or unique information such as but not limited to full names, email addresses, phone numbers, full serial numbers, etc.]

  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer

    first of all you need to set your BIOS to Launch CSM instead of UEFI:

    http://acer.custhelp.com/app/answers/detail/a_id/27072#_ga=1.230515676.1726682513.1446488832

     

    have a look at desktop instructions and video.

     

    Once done, you need to boot from your windows 7 installation media and wipe your HDD from command prompt:

    how to open command prompt during installation:

    http://www.sevenforums.com/tutorials/682-command-prompt-startup.html

     

    once in command prompt type:

    diskpart
    then on diskpart type
    list disk
    take note of the correct disk ID to erase
    type
    select disk x
    (x is the ID of your HDD to erase)
    type
    clean all

     

    it will take some minutes to end, once done, close command prompt and continue windows installation

    I'm not an Acer employee.
  • sdruws
    sdruws Member Posts: 35 Enthusiast WiFi Icon

    Appreciated your guidance.

     

    Thanks for help.

     

    As I am a  naive in this community, how do I give you a  kudo, please ??

  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer

    on my previous post, near the orange reply button, you will notice a green Kudos thumb up, click it. Smiley Happy

    I'm not an Acer employee.
  • sdruws
    sdruws Member Posts: 35 Enthusiast WiFi Icon

    STRANGE AS IT COULD BE, I TRIED THIS PROCEDURE RECOMMENDED BY YOU MANY TIMES BUT THERE IS ALWAYS A FORBIDDEN SIGN, A CIRCLE CROSSED WHICH AVOID THE kUDO TO BE CLICKED.

    SORRY BUT IF YOU HAVE AN ALTERNATIVE , PLEASE MET ME KNOW

     

    RGDS AND THANKS AGAIN

     

    SOLON

  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer

    Dont' worry, it's ok Smiley Very Happy

    I'm not an Acer employee.