I have tried to download a lot of miners and all of them are deleted, I don't even know who is deleting them, if Windows antivirus or McAfee antivirus. I have tried to change configurations, turn them off, etc. but nothing seems to work, is there a way to download and use a miner easily?
I guess you try to mine at work and your employers antivirus is blocking your miner? ;)
1) You could run the miner inside a virtual machine. With VMWare or VirtualBox. I would recommend to use Ubuntu Server.
3) If the antivirus is blocking the executable, then you could try using a node.js miner
Try to set exceptions in the Anti-Virus software, which means to exclude certain directories and/or files to be excluded from scans. It worked out for me for xmr-stak miner, which was detected as virus/trojan in MS Security Essentials.