Used this program for 2 years even though it has missed viruses in the past, i renewed the lis. for 2007. Downloaded it, tried to install, it took the old 2006 program off, then says it cant install new because old program STILL exists. Now i have antivirus, i sent trend-micro 2 support messages & they never answered me. I want my lic. renewal for 2007 back. buyers- this program is almost as bad as norton to get off pc.