1. Gather the necessary installation materials. You will need an installable disc or flash drive with the operating system that you want to install.
2. Make sure your computer meets the minimum requirements. Operating systems require specific types of hardware, so make sure your system is able to run the one you want to install.
3. Backup all your important data. Before installing a new operating system, make sure you’ve backed up all of your important files and documents.
4. Shut down your computer. Before beginning the installation process, make sure your computer is completely shut down. This can be done by pressing and holding the power button until the computer shuts off.
5. Insert the installation media. Insert the disc or flash drive into the computer, then turn the computer back on.
6. Follow the on-screen instructions. When the installer screen appears, follow the instructions on-screen. The process may vary depending on the operating system being installed.
7. Reboot your computer after installation. Once the installation is complete, the computer will likely restart automatically. If not, you may need to manually reboot it to finish the installation.
8. Install any needed drivers or programs. After the installation, you may need to install additional drivers or programs for the computer to reach its full potential.