Windows 7 wont load past start up screen

[LoriMarie]

My windows 7 will not load past the start up screen...I was able to get into safe mode and try to restore and repair and neither worked. I ended up backing up my files just in case I cant get this problem fixed. I will add though that my battery is dead and often falls off the back of the computer...I have read something about battery issues being a cause of start up problems....other then that I have no idea what to do and my gut is telling me there has to be something I can do and that my computer should still be functional...HELP please lol

[soybean]

How were you able to back up files when you can't get Windows running? 

What happened to your computer that lead to the problem of the battery falling off? 

Have tried removing the battery and then starting your computer with it plugged in to a wall outlet? 

[hwrddrn]

have you try last good configuration