Easy, I suggest everyone do this, I always keep my computer up to date, whether it's because my asian instincts (hehe..) or just because I like it.. It's good to do so.
hop on over to:
www.windowsupdate.microsoft.com
I'd update everything I can.
Right now I'm on Win7, but that's the same thing, let it scan, pick everything up (Click on Custom), then select as many things as you can.
Of course, I can do this because I have literally about 2-3TB of space (about 1-1.80TB Free).
If you're running tight on space, do a couple at a time.