I currently have ubuntu 14.04 and mainly use windows 7. I don't know what partitioning is and I don't know how ubuntu was originally installed on my computer. All I know is that the 14.04 is very buggy and won't even boot properly.
So I just downloaded another ubuntu 14.04 iso file and burned it to a dvd. Now I want to uninstall my current ubuntu and install it again using the cd.
The problem is, I don't know how. I read a thread that said to download MiniTool Partition Wizard Home Edition to get rid of ubuntu but it didn't say anything else.
When I run the wizard I get this image and I'm too scared to change anything.
So here is my main problem in case I wasn't clear.
I want to install ubuntu 14.04 alongside my windows 7. To do this, I need to uninstall my current buggy ubuntu then install ubuntu again from a cd. How do I uninstall my current buggy ubuntu?