I finally decided to clear my hard disk and start over again. I need to install both Ubuntu 12.04 and Windows 7. I currently have two problems:
I have installed Ubuntu on the fresh 320 GB drive, but when I restart I can't boot into my Ubuntu, except when I insert the flash drive I used for the installation of my system during the boot process.
What's the best and easiest way to install Ubuntu 12.04 on a seperate partition, and how do I go about the partitioning?