Hello, I am new to the forum, I took a few mins to look for answers in previous post but didn't find anything relevant to my query. Here goes, I have just switched to a new macbook. I have used a pc for several years. I'm enjoying the experience so far. One of my concerns is whether I should be performing any regulare tasks to keep my new mac in good condition. While using a pc I would regularly scan for spyware and adware. I would also use an app called c cleaner to get rid of useless stuff that would stick to my machine while using the web. Should I be doing something similar on my new mac? I have read several comments about there being no viruses, spyware etc about 30 mins ago, a pop up message appeared telling me I should scan for spyware. It gave me the option to proceed, I declined and was taken to a web page advertising some sort of anti spyware software. I got in a bit of a flap so didn't read much of what was on the screen and just clicked no on the pop up box which asked me if I wanted to scan my machine. I think it was for something like win anti-adware or something like that. I haven't experienced anything like that for years. I was using firefox at the time, earlier in the day I had been browsing around for tips about adware etc and think the site I was taken to was one of the pages I looked at. Any comments would be greatly appreciated.