Do you have Norton Multi Security or Norton Internet Security and have you switched to Windows 10? If so, you will need to upgrade your Norton product (only if you have version 22.5.1 or lower).
You can upgrade Norton via the pop-up on your screen or via the Notifications section:
As soon as you have performed this upgrade, your computer will be protected again.
Do you have any other questions? Please contact us per e-mail.