Guys
Sorry if it's not the right place to ask this... if not, please tell me where should I.
When you mine through Windows, does your anti virus detect the miner as a infectious file and kills it?
Should I turn off my anti virus and mining without it?
rather then turn off your AV, i would recommend just whitelisting the miner file
This is a well known issue with these miner files, as they were flagged back in the day when people maliciously packaged them

One day, and some miners dont trigger it ;p
read the forums man, especially EVERYTHING relevant from this board:
https://bitcointalk.org/index.php?board=160.0 (current board)
We set up a folder called "Mining" on each rig that we have running and then have separate folders within that for ever single mining program etc... We then whitelist that entire "Mining" folder in the AV software and it's been fine ever since. Even with just Windows Defender you will have all sorts of issues if you don't exclude/whitelist a folder with everything else installed within that folder.