Windows 8 is an operating system developed by Microsoft and belongs to the Windows NT family. Development of Windows 8 began in 2009, even before the release of its predecessor, Windows 7. It was presented at CES 2011, followed by the release of three test versions from September 2011 to May 2012. The operating system itself was released on August 1, 2012 and became publicly available October 26, 2012.
Steps

Step 1. Insert your Windows 8 DVD or USB stick
Run the installation file.

Step 2. Select the system language
Select your keyboard layout and click Next.

Step 3. Click the "Install" button

Step 4. Enter your serial number and click Next

Step 5. Click on "I accept the license terms" and then click on the "Next" button

Step 6. Click Custom
install Windows only”.

Step 7. Select the partition on which you want to install Windows 8 and click "Next"

Step 8. Wait a couple of minutes for the installation to complete

Step 9. Choose your favorite color, enter "Computer Name" and then click "Next"

Step 10. Click the "Use Express Setup" button

Step 11. Here you can either sign in with your Microsoft account or with your local account

Step 12. Enter your name, choose a password and click the "Finish" button

Step 13. End
Install software and device drivers.