Kaspersky Free does give me a reminder about it's available VPN service once a week or so....(I can live with it!)
I've used Defender for 12-15 months or so previously, with no ill effects, but, then I don't download porn. software cracks, 'free video players', free movies, free MS Office, etc... (amazing how little trouble one can have if one stays out of crappy infection-prone places...)