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Install Windows 8.1 alongside Windows 8

  • Sep 22, 2025
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You don't want to throw Windows 8 on Board, you can install Windows 8.1 in parallel with the old System. We will show you how to do it.

Step 1: Windows 8.1 download

To install Windows 8.1 alongside Windows 8 you must download first the installation file for Windows 8.1 manually and on a storage medium, for example a USB Stick, save it..
  1. Download the free Windows 8.1 Setup Tool download and start the program.
  2. Select the point "install by creating media" and then choose whether you want to transfer about 2.5 GB large file to a USB Stick or a DVD.
  3. Select the USB Stick, copied the ISO-file directly to this. Select the Option on the DVD, you must burn the ISO file itself on the DVD. This is achieved, for example, with the CDBurnerXP.
  4. Then start the process that will download the installation file of Windows 8.1, and automatically on the storage medium transfer.
Windows 8.1 alongside Windows 8

Step 2: Windows 8.1 alongside Windows 8 install

Now you can install Windows 8.1 on your Computer. Thus, both systems may operate in parallel to each other, you must create a second Partition for Windows 8.1. This you can either, as in this example, when you install Windows 8.1 or do in advance with a program like Easeus Partition Master.
  1. Insert the DVD into the Computer or plug the USB-Stick. Shut down the Computer and then restart it.
  2. After a short delay, the Installation of Windows 8.1 starts. The bottom right, click on "Next" and then click the Button "install Now".
  3. Enter a valid license key, accept the license terms and click "Next". You don't have to write down your license key before it can be entered later.
  4. Now select the bottom Option, the "custom Installation". Here you can see all the partitions on your computer. The bottom right, click on "drive options" and then click "New" to open another Partition.
  5. Enter a name and assign it to the desired memory location. 25 GB should be a minimum. If you want to install on the Partition programs, you should be set to a minimum of 50 GB.
  6. Click on "Next", Windows 8.1 installed on the Partition.

Step 3: Between Windows 8 and Windows 8.1, select

The Computer is then started again, you will be offered the choice of which operating system you want to start. It is a blue screen appears from which you can choose, in the now, at each boot between Windows 8 and Windows 8.1.
  • Select the first Time Windows 8.1, it must first be configured.
In Windows 8.1, the Media Center set up, we will explain in this practical tip.

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