How to stop an application setup (please answer)?

Question

My little brother used my laptop. He download something and run the setup (without asking me). When I went to him, he canceling the application while it's running. Then, every time I log in to my account, a window (I don't know what it is called. It like when you deleting something, 'something' pops out to give you warning do you really want to delete it. The 'something' that I talking about. That have blue colour on the top of it ) pops out. It say "Already installed. Aborting process...". On the top of it (the blue space) say 'Application Setup'. How I want to stop this? And to those who expert, can you tell me your e-mail too? I really need help. I'm not good in this thing.

Answer 1

Try restoring your Windows to before your brothers Antics. Start>Programs>Accessories>System Tools>System Restore

I would also suggest installing Revo uninstalleer (http://ww.revouninstaller.com)

The program helps you get rid of hard to get rid of programs, Incomplete installs & uninstalls & has other tools that you'll like..

& after this is done, I'd create a guest account for the little brother & [password protect mine so that he would not be able to log in with admin rights & install stuff..