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my itunes has apps in it that i used to have on my ipod but have now deleted. but every time i sync my itouch it reloads these apps. also, if i download any new apps between syncs, if the app isnt on my itunes then it deletes it from my itouch. so is there any way to set it so when i sync my ipod to only sync the songs and not the apps, or just to have it so it makes the apps on my computer match the apps on my ipod instead of the other way around. thanks.

So I just got a new laptop for Christmas and I'm going to give my old one to my sister but it has a lot of junk files on it that she wont need. How can I clear the hard drive so that it's like it was when I first got it if I've lost the CD it came with?

whenever I turn on my computer a chat program i downloaded opens but I don't use it much anymore and it always slows down my computer while its opening. How do I make it not automatically open when I turn my computer on? Im running Windows 7.