I installed Ubuntu using wubi installer, and it installed fine. But then I ran into a problem where the top bar and program bar (the thing on the left side, I don't know what to call it) were gone.
Seeing no way to fix this, I decided to uninstall Ubuntu and then reinstall it. The Windows portion of the reinstalling process went much faster than it did the first time. When I clicked "reboot now" and the computer rebooted, instead of showing the code on the black screen (like it did the first time) it took me to a fully rendered Ubuntu window that said Install at the top.
It was taking a while to install, and then at about 3/4 of the way through, when it said "copying files" it froze. I couldn't even move the mouse. I left it alone for a while, hoping it would unfreeze itself and continue on installing. It sat for over 3 hours without doing anything. The only way to shut down my computer was to hold the power button down until the computer powered off.
I waited a few minutes, then turned it back on, and got the option to run Windows 7 or Ubuntu. I chose Ubuntu, and it ran the install thing again, only to freeze in the exact same spot.
I am on an HP Pavillion dv6 Notebook PC, with a quad core, AMD A8 3500M APU with Radeon HD Graphics 1.50 GHz, and 8 GB RAM. Thanks in advance for your help!