Insert the USB flash drive into one of the USB ports on your computer. Momentarily a small prompt will appear saying the computer has detected a new removable device.
Insert the antivirus software installation CD into the disc drive of the computer to launch the installation wizard. If you downloaded the program, double-click the downloaded file to launch the installation wizard.
Read through and accept the license agreement, then click "Browse" when shown the installation location. A search window will appear on the screen. Choose the USB flash drive and click "OK."
Click "Next" for the installation name and select "Install." The antivirus program now will install onto the USB flash drive.