Back up all important files and data
Sign out of accounts and deactivate software licenses if needed
Create a recovery or installation USB for the operating system
Ensure the computer is connected to power
Restart the computer and open the boot menu or BIOS/UEFI
Set the USB drive as the first boot device
Boot from the installation media
Choose the option to install or reinstall the operating system
Select the drive or partition to format
Delete existing partitions if required
Create new partitions if desired
Format the selected partition
Proceed with the operating system installation
Follow the on-screen setup steps
Install drivers and updates after installation
Restore your backed-up files and reinstall applications