Windows 8 and 8.1 Forums


Clean install of Windows 8.1

  1. #1


    Posts : 44
    Windows 8

    Clean install of Windows 8.1


    I have Windows 8.1 64 bit Pro (updated to Windows 8.1)

    I want to a clean install using the ISO created using Windows Media Creation on your web site before I update it to Windows 10 when it is released.

    I have the product key that came with Windows 8.0 so when I install Windows 8.1 using the ISO from your web site do I use that key?

    I hope that makes sense.

      My System SpecsSystem Spec

  2. #2


    Posts : 22,582
    64-bit Windows 10


    Hello Walter,

    If you mean from OPTION ONE below, then yes it can use your Windows 8 key.

    Windows 8 and Windows 8.1 ISO - Download or Create

    If this was a preinstalled Windows 8 on an OEM PC, then the installation should automatically detect the product key that is embedded in the PC's UEFI firmware chip, and activate.
      My System SpecsSystem Spec

  3. #3


    Posts : 44
    Windows 8


    Quote Originally Posted by Brink View Post
    Hello Walter,

    If you mean from OPTION ONE below, then yes it can use your Windows 8 key.

    Windows 8 and Windows 8.1 ISO - Download or Create

    If this was a preinstalled Windows 8 on an OEM PC, then the installation should automatically detect the product key that is embedded in the PC's UEFI firmware chip, and activate.
    It is a retail DVD set.
      My System SpecsSystem Spec

  4. #4


    Posts : 22,582
    64-bit Windows 10


    In that case, you'll still be able to enter the Windows 8 key during setup to activate Windows 8.1 with.
      My System SpecsSystem Spec

  5. #5


    Posts : 112
    Windows 8.1


    Quote Originally Posted by Brink View Post
    If this was a preinstalled Windows 8 on an OEM PC, then the installation should automatically detect the product key that is embedded in the PC's UEFI firmware chip, and activate.
    Q: if one uses an 8.1 Update ISO to clean install, what happens to the OEM's basic drivers such as the WiFi/LAN adapter, audio and graphics, touchpad, etc ? Are these imbedded or do they have to be re-installed ? It seems that some of these are basic to the computer running, at all.

    I'm thinking ahead to Windows 10, doing a clean install when an ISO is issued vs an in-place upgrade. I understand 10 will have OEM software/ bloatware in a separate package so they can not make a 'custom recovery image' as they do in 8.1 when you 'Reset'. Thanks in advance for any advice you can offer.
      My System SpecsSystem Spec

  6. #6


    Posts : 44
    Windows 8


    Quote Originally Posted by mrgeek View Post
    Quote Originally Posted by Brink View Post
    If this was a preinstalled Windows 8 on an OEM PC, then the installation should automatically detect the product key that is embedded in the PC's UEFI firmware chip, and activate.
    Q: if one uses an 8.1 Update ISO to clean install, what happens to the OEM's basic drivers such as the WiFi/LAN adapter, audio and graphics, touchpad, etc ? Are these imbedded or do they have to be re-installed ? It seems that some of these are basic to the computer running, at all.

    I'm thinking ahead to Windows 10, doing a clean install when an ISO is issued vs an in-place upgrade. I understand 10 will have OEM software/ bloatware in a separate package so they can not make a 'custom recovery image' as they do in 8.1 when you 'Reset'. Thanks in advance for any advice you can offer.
    That is a good question as I will want to do a clean install on my ACER laptop which has a OEM 8.01 home on preinstalled.
      My System SpecsSystem Spec

  7. #7


    Posts : 22,582
    64-bit Windows 10


    Quote Originally Posted by mrgeek View Post
    Quote Originally Posted by Brink View Post
    If this was a preinstalled Windows 8 on an OEM PC, then the installation should automatically detect the product key that is embedded in the PC's UEFI firmware chip, and activate.
    Q: if one uses an 8.1 Update ISO to clean install, what happens to the OEM's basic drivers such as the WiFi/LAN adapter, audio and graphics, touchpad, etc ? Are these imbedded or do they have to be re-installed ? It seems that some of these are basic to the computer running, at all.

    I'm thinking ahead to Windows 10, doing a clean install when an ISO is issued vs an in-place upgrade. I understand 10 will have OEM software/ bloatware in a separate package so they can not make a 'custom recovery image' as they do in 8.1 when you 'Reset'. Thanks in advance for any advice you can offer.
    In that situation, you would lose everything since it's a clean install. You would need to download the drivers from the OEM support website if they were not available via Windows Update.
      My System SpecsSystem Spec

  8. #8


    Posts : 112
    Windows 8.1


    Thanks, Brink. That's why I download and zipped all the current drivers and selective software for my model from the OEM and stored in Cloud. So, things like the network drivers, graphics and touchpad mouse are added after the OS is clean installed ? Otherwise, how would Windows Update know what drivers to update ? Does the install order matter ? Is the BIOS retained ?
      My System SpecsSystem Spec

  9. #9


    Posts : 22,582
    64-bit Windows 10


    Windows has generic drivers already included with it that will usually allow most devices to work properly until you install their drivers after Windows has finished installing. Some manufacturers have partnered with Microsoft to deliver driver updates through Windows Update, but there are always some that you will need to manually update.

    The BIOS/UEFI will not be affected by reinstalling Windows.
      My System SpecsSystem Spec

  10. #10


    Posts : 112
    Windows 8.1


    Thanks for all the wonderful info, Brink. I do get occasional driver updates thru Windows but have a complete set in preparation. Now I can approach a clean install with confidence as to what will happen.
      My System SpecsSystem Spec

Page 1 of 2 12 LastLast
Clean install of Windows 8.1
Related Threads
How to Do a Clean Install of Windows 8 or Windows 8.1 This tutorial will show you how to do a clean install of Windows 8 (ex: System Builder copy) or Windows 8.1 on your PC. Windows 8 and Windows 8.1 System Requirements Windows 8 works great on the same hardware that powers Windows 7. ...
I just got a new laptop, a Lenovo X230, for which I paid extra to have the OS on it as Windows 8 Pro. So--now I have it, and Win 8 Pro 64 is installed and activated on it. I am a legal owner of Win 8 Pro. However, I would like to do a clean install of Win 8 on the computer, to have it free of...
hello, i just got a new lenovo ideapad y510p laptop with preinstalled windows 8.1. as soon as it arrived, i tried to do a clean (fresh) installation. however, there was no key sticker on the laptop and none of the documents had the key, but after hours of research i found 2 different keys using...
Clean disk before clean install? in Installation & Setup
hello I had many problems with BSOD crashes, and decided to make a new clean install (SSD or harddisk). If I make a new clean install (no upgrade) is it enough to create 1 continuous unallocated disk and then it will make a clean install Or do I have to "clean up" my old disk first before making...
Clean install for windows 8 Pro in Installation & Setup
So I bought windows 8 this morning. I had to leave for work before it finished installing. I get back and its asking for my PC name and everything. I look and see it did not format my hard drive. I want a clean install so I need that formatted. How do I download the Windows 8 Pro .ISO so I can make...
Windows 8 Pro and clean install in Installation & Setup
Just to continue on from last night, I did a clean install over Windows 8 Release Preview, no other Windows version on the disk. While installing I formatted the HDD and did a totally clean install. I installed with my Windows Live account, everything went smoothly with no other Windows version...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook