I have a emachine T6216 when I start it up and it goes to windows it shuts down. Sometimes at the start of windows sometimes 20 mins later. When I restart it the temp is 40 degrees centergrade (144 degrees F). If I go to set up I can stay there a long time more then 20 mins, I also ran recovery and it went all the way through then when it started to run windows it shut down. Pulling my hair out here. There is no set time it shuts down sometimes 20 mins sometimes shorter. Does any body have any iders?

Dont get an e-machine. They are notorious for being a lot on the iffy side. But to maybe help, you might want to reformat, you may have picked up a nasty little virus.

Dont get an e-machine. They are notorious for being a lot on the iffy side.

to late for that !!
did you try opening the tower and cleaning the dust off the fans and such ,if the graphics card has a fan make sure its clean and working.

not bad for the money 99.$
http://www.emachines.com/products/products.html?prod=T6216