Remove older version of windows

I've got windows 7 and windows 8 on two different partition. So, how do i go if i want to remove windows 7 completely and just work with win 8?

i think you have to format that partition,but first backup u'r important thing on other partition !
this is just my thought,wait for other mature answers !

In addition if you are dualbooting windows 7 and 8 you need to (when signed on to windows 8) hit :winkey: R, enter msconfig and press enter. Then remove windows 7 from the boot tab.

Do you have the Sydtem Reserved partition?

http://www.eightforums.com/tutorials/9759-dual-boot-windows-7-windows-8-delete-windows-7-a.html

http://www.eightforums.com/tutorials/2372-dual-boot-windows-7-windows-8-delete-windows-8-a.html