The Mizuho PC Deployment Process involves preparing a new PC for deployment by creating an Active Directory object, updating the BIOS, replacing the hard drive with an SSD, and adding the PC to the domain. The deployment process then takes screenshots of the desktop, installs and tests basic and advanced software, configures dual monitors, and sets the default printer. After deployment, the old PC is placed in storage, its information is updated in tracking databases and spreadsheets, and a form is submitted with details of the new PC hardware.