Solved! Fix PUP.Coupon Drop In problem

PUP.Coupon Drop In software is Win32:PUP-gen related.
PUP.Coupon Drop In (potentially unwanted program) is a program that may be unwanted for users.
PUP.Coupon Drop In may have one or more of unwanted features: spying user, adwertising, search redirecting, or browser hijacking.
PUP.Coupon Drop In is often downloaded in a bundle with useful program.
Suggest to uninstall PUP.Coupon Drop In as soon as possible.
PUP.Coupon Drop In is related to: Adware, Win32-PUP-gen, PUP.Coupon Drop In.