Hi
The fact that it froze doing a factory reset probably means that Trouble is right about a disk issue.
It should be able to access the factory reset partition.
Remember that doing that will wipe all the files on your computer, if it does work.
If worse comes to worse and you can't get your computer to boot without a complete reinstall or new drive, and you can't plug the hard drive into another computer...
You could try creating a Ubuntu disk on another computer and boot your computer to that.
If you hard drive is readable you should be able to access it and if nothing else back up your important files.
It's an easy process to make the disk.
Just download the .ISO file for Ubuntu....
http://www.ubuntu.com/download/desktop
Pick the 32 bit if you don't know what your computer is, you can use the 64 bit one if it's appropriate.
Once you have the file burn it to a CD or DVD using ImgBurn...
http://imgburn.com/index.php?act=download
Select the "Write Image File to Disk" option.
The disk should boot your computer and let you see your hard drive, if it is readable.
If it continues to try and boot to Windows enter the bios and set the first boot device to the DVD drive.
Most computers are set this way be default so you probably wont need to do that.
Mike