Computer keeps restarting before windows

t just keeps restarting. it will bring up abit. then goes to starting windows. does it over and over. Where do I get that information? I put it back in safe mode. when I choose repair computer it says. Status OxcOOOOOOf Info: The boot selection failed because a required device is not inaccessible. My local drive was full there was no room so I moved things from my local drive to back up. it then wouldn't connect to the internet and when I restarted my system it wouldnt reconnect
 



*LOGISYS Computer PS480D 480W ATX12V Power Supply

*Intel BOXDG41TY LGA 775 Intel G41 Micro ATX Intel Motherboard

*Intel Pentium E5700 Wolfdale 3.0GHz LGA 775 65W Dual-Core Desktop Processor BX80571E5700

*G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model F2-6400CL5D-4GBNT

"i cant remember the name and model hard drive right now, im at work. all i know is that its a 1tb