Do i need both of these?

Microsoft .NET Framework 2.0 and Microsoft .NET Framework 3.0 or can i just keep one of them b/c they are taking up a lot of memory on my pc...thank you

Do i need both of these?windows live

u can take one off. =]

Do i need both of these?windows media player 11 internet explorer

Just keep Framework 3.0. Remove thee old version. Good luck!
3.0 will surfice. You shouldnt need both unless you have a specific application based need for them both. I would assume you don't. So feel free to uninstall 2.0.

Good Luck!
No, you don't need both of those. The 2.0 is only taking up extra space on your hard drive. There's not really a point to having both of them installed if you are just a regular computer user.