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Windows 8.1 Clean Installation Instructions


Clean Installation Instructions are for Commercial Systems only, for example Windows 8 Pro.

You can perform a clean installation of Windows 8.1 on DVD.  A clean installation typically means formatting your hard drive before installing Windows, so make sure that you have backed up your files before proceeding.


Installation Prerequisites

Before you proceed with the update, make sure you have System Administrator permissions, Wired Connection to internet, network cable connected, BIOS update, Application(s)/driver(s) updated and AC Power (if mobile device is being used); also ensure all important data is backed up in case of data loss on your drives. This guide assumes you have media backups of your hard drives and you are safe to proceed. System back-up using Windows Easy Transfer to storage (e.g., external hard drive, burn to disc, network) – REQUIRED for clean installation.

Warning: Installing another operating system without first ensuring you have backups of your current files and operating system is a big risk. If you have no data to lose or you’ve backed up important data, you’re ready to proceed. YOU are responsible if you lose data.

Disclaimer: Zoostorm does not accept any liability or responsibility for any errors or damages made to your computer during, or after installing this operating system. It is up to the user to ensure proper backups are made of important documents and files.


To perform a clean installation using a DVD

If you bought Windows 8.1 on DVD or created a DVD when you purchased and downloaded Windows 8.1, follow these steps to perform a clean installation.


Step 1

Turn on your PC so that Windows starts normally, insert the Windows 8.1 DVD, and then shut down your PC.

Step 2

Restart your PC.  Ensure that the Windows 8 .1 Installation disc is in the CD-ROM. After this then boot to the disc from the Boot Menu and select the DVD device as UEFI.

If you restart your PC and your current version of Windows starts, you might have to change the boot order in your PC’s BIOS settings so that your PC boots from the media.

To change the boot order, you’ll generally press a combination of keys (such as F2, F12, Delete, Esc) immediately after you turn on your PC. Turn on your PC and Tap ‘’F_’’ repeatedly for accessing the Boot Menu.

ECS Motherboard – F7

Gigabyte Motherboard – F12

MSI Motherboard – F11

ASUS Motherboard – F8

If you miss this, it will then boot into Windows, you will then need to start the steps again.  If your current version of Windows still starts, try again by waiting until Windows asks you to sign in, and then restart your PC again.

Step 3

On the Install Windows page, enter your language and other preferences, and then click Next.

Step 4

On the Please read the license terms page, if you accept the license terms, click I accept the license terms, and then click Next.   Then click Install Now to continue with install.

Step 5

On the Which type of installation do you want? page, click Custom.

Step 6

On the Where do you want to install Windows? page, click Drive options (advanced).

Now for the important bit, it will offer you where you want to install Windows 8.1.  You will need to delete all of the partitions in there for it to be a clean install.

Step 7

Click the partition that you want to change, click the formatting option you want to perform, and then follow the instructions.  When you have deleted all the partitions; it should leave you with the ‘Drive 0 Unallocated Space’ in the box.

Step 8

When you’ve finished formatting, click Next to continue the installation.  After this, you have to wait for the Installation to finish which could take a while.

Step 9

After the final reboot, the Out of Box Experience (OOBE) loads.  It will go through a variety of options to help you with Windows 8.1.  Choose a background colour and enter a PC name and then click next to continue.

Step 10

Follow the instructions to finish installing Windows 8.1.

Step 11

After updating your PC to Windows 8.1, Zoostorm recommends that you install a few updates.

Recommended app / driver updates and actions

Click here to access Updated driver or firmware download / install instructions

Click here to access Updated app download / install instructions

Click here to access Windows Compatibility Center, if you want check for potential issues and recommendations