At the moment I have Ubuntu and Windows 7 installed on my hard drive. Since I don't want to split my memory I want to remove Windows, but I have no idea how to do it since I am new to Linux.
Another problem I had after installing Ubuntu was that the GRUB bootloader didn't work so I googled for a bit of advice, and now I think I have an older version of GRUB. Is there a way to update it?
This is how my drive looks like at the moment: