Which free antivirus will you prefer to use with win 10?

It's kinda too early to decide now. For now Defender + Mbam + maybe some of usual "suspects" like Ad-Aware, AdwCleaner and what ever is warranted at the time. also considered. I'm hoping that Defender will greatly improve with time, there's no reason not to if MS wishes it, they are in best position to protect their OS as they are privy to it's deepest secrets.

Sticking with Defender, not because it's very good but because other AVs tend to cause some issues with the Tech Preview. I mean other AVs do work but not without a hitch.

badrobot said:

Sticking with Defender, not because it's very good but because other AVs tend to cause some issues with the Tech Preview. I mean other AVs do work but not without a hitch.

Not just problems with 10TP.... They totally kill 8.1 too sometimes.

Cliff S said:

Not just problems with 10TP.... They totally kill 8.1 too sometimes.

Yeah, remember Avast disaster a while ago ?

CountMike said:

Yeah, remember Avast disaster a while ago ?

or Kaspersky killing the internet on XP, and I believe another time they flag something in the kernel too.

Cliff S said:

or Kaspersky killing the internet on XP, and I believe another time they flag something in the kernel too.

Right now I am running AVG on my 8.1 but I might switch to Defender. AVG is running so many scans and very annoying. I already tweaked it and disabled what I don't want. Still annoys me.

The thing that turns me off about 3rd party AV's is, that, they add so much extra crap you don't need.
All one needs is a full scan when it's installed(better would be offline using a thumb drive but...) and it white lis'st what you already have, then it only needs to work behind Windows fire wall checking what comes in(like BitDefender free, the only one I personally find pretty good).
All the other things, Cookie detector, cleaner, browser add on and specially another firewall, are totally unnecessary even for the most click happy person. Windows firewall's default settings are perfect, all ports (except those for the OS) are closed unless you give permission(like sudo in Linux), of course your UAC settings need to be set correctly.