Hello, today i was working on the PC when the power got down for a second, i started the pc and the power blinked again, so i just waited 30 mins or so and i turned on the pc again, but this time it only got to the color balls that form the windows logo, showed the "please wait" message with a black background to finally led me to a black screen with the windows 7 ultimate logo on the bottom center, a button with some accesibility options to the left and the red button to turn off and reset the machine,i cant do anything more, Ctrl+Alt+Supr doesn't work or the windows key+R. starting in safe mode doesn't change anything neither. my specs are:
Intel core 2 duo 2.4 ghz
2 gb RAM
250 GB HDD
geForce 9500 gt
PS: i didn't install or configure anything before the second time the power got down, and after the first one the pc started fine.