I've uninstalled it by accident and it won't reinstall without my Microsoft disk (which I don't have). Need a program which I can just open and paste a screenshot into and save quickly. Cheers.
If the problem is that you want a screenshot saving as a file - Then install 'ScreenHunter' it's FREE. http://wisdom-soft.com/sh/sh_free.htm This allows you to take a screenshot and automatically save it as a .jpg file without having to go into Paint and to paste/trim the image. Very handy utility to have.