Windows 10: Product code for Win 10 Clean reinstall after upgrade

Page 1 of 3 123 LastLast
  1.    29 Jul 2015 #1

    Product code for Win 10 Clean reinstall after upgrade


    I have downloaded the Windows 10 Pro ISO file from MS and burnt it to a DVD.

    It offers to install it as an upgrade over my Win 8.1 Pro installation on my PC.

    Once I have done this, can I then format the hard drive, and do a clean installation of Win 10 on the same machine without a product code?

    I'm assuming the product code will be installed in the BIOS and not needed to be put in manually?

    Can anyone confirm that I have correctly understood how it works?
      My ComputerSystem Spec


  2. Posts : 1,663
    Windows 10 Pro Insider Preview x64
       29 Jul 2015 #2

    Mustang said: View Post
    I have downloaded the Windows 10 Pro ISO file from MS and burnt it to a DVD.

    It offers to install it as an upgrade over my Win 8.1 Pro installation on my PC.

    Once I have done this, can I then format the hard drive, and do a clean installation of Win 10 on the same machine without a product code?

    I'm assuming the product code will be installed in the BIOS and not needed to be put in manually?

    Can anyone confirm that I have correctly understood how it works?
    Yeah, that should work. I clean installed 10 this morning and it's still activated. I was coming from 10 IP, but it should work for 7 and 8.1 as well.
      My ComputerSystem Spec

  3.    29 Jul 2015 #3

    This is indeed true. When you clean install after installing it as an upgrade, you'll be able to skip the Windows 10 key prompt during clean install after which it will be activated regardless.

    Read here: Installing Windows 10 using the media creation tool - Windows Help , you'll find the following written about doing a clean install and it asks you for a key:

    "Note

    If you upgraded to Windows 10 on this PC by taking advantage of the free upgrade offer and successfully activated Windows 10 on this PC in the past, you won't have a Windows 10 product key, and you can skip the product key page by selecting the Skip button. Your PC will activate online automatically so long as the same edition of Windows 10 was successfully activated on this PC by using the free Windows 10 upgrade offer. "
      My ComputerSystem Spec

  4.    29 Jul 2015 #4

    While everything said is true, Don't be surprised if you have issues activating the 2nd time, the activation servers are dead in the water and it may take a few days (I spent 45 minutes dealing Microsoft support about this exact issue)
      My ComputerSystem Spec


  5. Posts : 57
    WinXp; Win7 Pro; Win10 Pro
       29 Jul 2015 #5

    People in this forum have reported earlier that it was taking 3+ hrs sometimes to have everything get caught up on the MS side. They say it does indeed switch over to activated.

    The info on what you upgraded is saved to the UEFI firmware chip, which is then checked when you do the ISO boot & fresh install.

    So there will just be MS lag for a period of time before you are switched over to activated.

    MS "Soon."
      My ComputerSystem Spec

  6.    29 Jul 2015 #6

    The product key is not stored in the BIOS. Windows 10 doesn't touch your BIOS.
      My ComputerSystem Spec


  7. Posts : 771
    Windows 10 Pro x64 Build 16362
       29 Jul 2015 #7

    Mystere said: View Post
    The product key is not stored in the BIOS. Windows 10 doesn't touch your BIOS.
    That's true as far as I know!
      My ComputerSystem Spec

  8.    29 Jul 2015 #8

    blackroseMD1 said: View Post
    Yeah, that should work. I clean installed 10 this morning and it's still activated. I was coming from 10 IP, but it should work for 7 and 8.1 as well.
    It never asked for a key rite?
      My ComputerSystem Spec


  9. Posts : 771
    Windows 10 Pro x64 Build 16362
       29 Jul 2015 #9

    The only thing I can think about is that MS is recording all your hardware details after you did a UPGRADE. But I don't think so, and it doesn't sound to work that way!
      My ComputerSystem Spec

  10.    29 Jul 2015 #10

    jyusa said: View Post
    The only thing I can think about is that MS is recording all your hardware details after you did a UPGRADE. But I don't think so, and it doesn't sound to work that way!
    Yes, MS is recording them.
      My ComputersSystem Spec


 
Page 1 of 3 123 LastLast

Related Threads
Hi Guys A few questions.... Could someone please clarify, Will windows 10 update provide a product key for clean install? If so how/where? If not when performing a clean install, will skipping the product key prompt, then activating once...
Now that 10240 is officially official I decided to do the in-place reset to clean out any carried over glitches. I downloaded drivers, ninite, and office 365 installer and am now waiting waiting for the reset to finish.
Hello, Like the title says, will it be possible? If yes, it makes sense. If no, how users who upgrade from 8.1 supposed to clean install Win10 down the line in the future? Will we (win 8.1, 8 and 7 owners) be given new activation codes? ...
Hey all I reserved my free windows 10 upgrade then my computer crashed and I had to reinstall windows 8. Will I still get the free upgrade?

Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 11:30.
Find Us