Most likely 'removing other applications' with F-Secure TOTAL application for Windows Phone 10 is not available option.
But do you able to place more information about this "virus"?
-- does it indeed Windows Phone 10?
-- how it visible that there is virus?
-- anything else (when it start or so).
Maybe it will be possible to perform some common workarounds.
// also just as addition point -> available next knowledgebase article about EOF: