Q: Macbook Pro Retina runs hot while lid is closed and fans working at full speed

It scared me as well. I closed the lid and put it into the bag. I then picked it out again after half hour cause I forgot to send a file and lucky I did it... It was running like **** and the temperature was so **** hot I could handle it. I am really scare because I'm afraid it can gets on fire so I'm switching it off everytime, intead of just closing the lid-standby. How can we fix it?

Yes but just few hours ago (and the lid problems occured few days ago).

I had the latest (i'm a developer) but unistalled this afternoon. why?

So far so good (no xcode installed on my machine).

I'm having the identical problem... the MBPr is getting hot when I close the lid and put in my backpack. Last night when I pulled it out, the fans were going full blast. I thought it was a result of running VMware Fusion. I shut it down... and then had the same issue this morning. I've had it for more than week, and I just started having the problem. Any hints as to what it might be?

no idea. Chrome might be problematic (it crashes my system). try get rid of it for a while.

I'm not running Chrome. I have it installed, but I'm not running it. I have Mail, Calendar, Address book, Firefox running and that's it. I did have Fusion running the first time it happened, but I've terminated it... and am still seeing the problem.

When closing the lid of your notebook, always make sure the light starts pulsing before leaving it. If it doesn't, try to determine what is keeping it from sleeping. If you don't have time for diagnostics, just power it off.

What light? There does not appear to be a light on the MacBook with retina. (My old MacBook has a light). Is there a light I may not be aware of?