norton security quarantines "PUA.CouponViewer" twice each day because it can repair itself. Can PUA be eradicated?
Um, have you run Full System Scan w Norton and Malwarebytes.
PUA.CouponViewer is a potentially unwanted application that alerts the user about discount coupons when shopping online. The application changes browser settings, does not restore them when uninstalled, and leaves components on the computer.
Maybe, see Removal here:https://www.symantec.com/security-center/writeup/2018-041814-3548-99
Please tell us what Norton is telling you regarding this event. For information regarding this event > from Norton pop-up > View Details > Copy to Clipboard &or from Norton history > More Options > Copy to Clipboard > paste here.