If you have a CD, insert it into your computer (if the installation does not begin automatically, click Start → Computer and double-click the ESET disc icon).
In the Install ESET Security window, click Continue.
Figure 1-1
Review the End-user license agreement and click I Accept to continue.
Figure 1-2
In the Choose an activation option window, click Use a purchased License Key. If you are updating from a previous version, your license information will be entered automatically.
In the Use a purchased License Key field, type or copy/paste your License Key and click Continue. Make sure you enter the License Key exactly as it appears and include the hyphens. If you copy/paste, be sure you do not accidentally select additional space around the text. If you have a CD, type your Activation Key (printed on the label) in the blank field. Be sure to include the hyphens.
Select your preference for the Customer Experience Improvement Program (CEIP) and click Continue. You can change your CEIP settings after installation.