recently noticed that Installer is taking up 17 g of space on disk c on my old sony vaio. running windows xp.why would there be so much, and how do i remove the bad stuff?cheers in advance.

What installer is taking 17g of space? Not MSE, which is what this forum is for.Post your question here: http://social.answers.microsoft.com/Forums/en-US/xpinstall/threadsDocComputers verified since 1972

Sorry, thanks.

Also try to run clean up and defragnment in your PC. It would help to remove neccessary things and give more space.