With the appearance of a new virus and release of antivirus software updates, it is important to rescan all files, including those that have not changed since the last time they were scanned.
Before you begin
Be aware that rescanning migrated files increases file recall times for users (recall time + scan time) the first time each file is accessed.
Navigate to Virus Scanning page.to display the
Click the Request Full Scan link.This marks every file as unscanned, so the file will be scanned the next time it is accessed.