Hello and welcome to bleeping computer.
The first problem you have is running two antivirus software apps uninstall avg2012 then reboot your machine and see if it starts in normal mode then
Download CCLEANER the link below:
Just DONT us the registry cleaner function of CCleaner unless you know what you are deleting exactly!!
Then open ccleaner hit the tools button then startup second one down below uninstall then in the bottom right hand corner of ccleaner hit save to text file.Save it to your desktop and post the startup.txt here in your next reply.Also hit start run then type msconfig then hit the services tab then hit put a check mark in hide microsoft services what is listed there,after hiding microsoft services?
If it doesnt start in normal mode then follow the above instructions in safe mode with networking.