Hi I have been using macbook air early 2014 for 2 weeks and so far im really impresed by everything, but i have some questions: 1. This is my first mac, but not first apple item( i have iphone 5), and i really want it to be clean. No viruses etc So far i downloaded only apps from mac os store, but i want to download from the internet app called smcfancontrol. Problem is im really worried if its 100% safe and clear. I know that this app from creator website(eidac) should be 100% healthy, but hey there is always risk. Is it worth downloading antivir program, likw Clamxav? 2. What programs do you recommend for mac user? Some must have? I have apps from fiplab probably, battery health, ram memoru, disck doctor and status bar. 3. Is it normal to have only 62% ram free, when using mac? I run safari, and app is showing me 62-68%. I have 8 gb but man 4 gb? Thought mac os is not a vista : 4. My ip5 was synchronized with old pc, i synchronized ip5 with new mba, it completely deleted my music from iphone. I think there are thing left from my previous library. Where is their location? I did a new library ( cmd or ctrl + itunes click), because i dont want any thrashes from my previous library 5. Why this ifilevault is still stuck on decrypting? 6. Geberal recommendations for new user? I know its sound stupid, but im treating my mba like baby. I am opening it carefully, clean hands befote using etc. So general tips and help about system etc would be nice help for me Thanks for your time Cya!