I have a Toshiba Satellite C55 computer. Not too long ago I did a reset on it because it was running slow. I had done resets before with no problems. I went to general settings-->reset-->delete all files. When the reset reached about 50% it gave me an error message saying that the reset couldn't complete, and had a box to stop the reset. After clicking that box the computer shut down. So I turned it back on and while it was booting up, the fans turned on and I got the usual Toshiba title screen. The only thing missing from it was the loading circle. After About 2 seconds of the fans running they stop. I sit at the Toshiba title screen for about 3 more seconds, then it turns off and repeats the process endlessly. I tried to do a battery drain by removing the battery and plugging in only my ac adapter, and this gave me some sort of set up screen where I get to set date/time and battery preferences. After I saved and exited from the setup the computer once again started the endless cycle of turning of and on again. If anyone has any solutions I would very much like to see them. I tried researching the problem but all I found were the battery reset solutions and other laptop models that were not mine.