No side by side option in installing netrunner

Hi, I’m a newbie in linux and while installing netrunner 13.06 for the first time, I can’t install it alongside my windows 8? It only says like “use entirely” and 100% on netrunner. How can I install netrunner along side windows 8?

You have 4 primary partitions. A partition table (classic DOS not GPT) can’t handle more than 4 primary partitions. Thats the reason you can’t install along side Windows 8 here. You have to delete one of those partitions and make it a logical(extended) partition. This will allow you to create several other partitions under the the logical partition.
I hope this clears up some things.
If not there is always the wikipedia page which explains about the different partitiontypes: