Recently I needed to get an AV just because I was so used to Daemon Tools being such a nice program....until the fire nation attacked.
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PSA: If you have been having stutter/FPS lag on Disco where it does not run as smoothly as other games, please look at the fix here: https://discoverygc.com/forums/showthrea...pid2306502
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Get Vipre if you want a full featured antivirus program, we sell it through work to our business clients as well as regular consumers, the 2015 version is great.
From personal experience I would recommend you stay away from : Trend Micro, Avast, McCafee, AVG
Try using Kaspersky Interet Security along with Malwarebytes (free addtion, do a scan once a week). Nice combo.
Can't recommend from experience but I hear they're good : Norton, Bit Defender, Webroot