The last three times I have started my PC windows starts to load, but the progress bar only shows three little blue squares then stops. I have had to crash the PC to start again, on the second attempt windows loads no problem, The message says windows did not load properley maybe due to hardware/software problem,do you want to start windows normally? which I do. I have not added any hard/softwear, but I just bought a computer desk with a cuboard for the tower, it had been in the cuboard about an hour when I noticed the PC was making loud sounds, I think it must have been the fans as PC seems quiet hot, could this be a part of the problem? I have removed the tower from the cuboard, there was no vents apart from hole for cables.