What can I use an old computer for?

I don't know what my brother did to my computer. I can't use the toolbars to search for things on the net?

• Ever since my brother has used my computer, he has complained about not going into his google account. Now whatever he did has effected my user account. My homepage is yahoo and for some reason I can still sign in. The problem is that I can't use any tool bar whether it be Yahoo, google, bing, etc. I can go through the net but only through old links that I've looked through in the past. It really bothers me that the only way I can go to ebay and youtube is through my email account. I literally have to open emails from ebay and yahoo to get into the sites. When I try to go into a site by using a tool bar, I get this message after my computer has tried to upload a page. *The connection was reset The connection to the server was reset while the page was loading. The site could be temporarily unavailable or too busy. Try again in a few moments. If you are unable to load any pages, check your computer's network connection. If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web. What in the world did my brother do?

• Answer:

  Try doing a System Restore and choose a Restore Point that has occurred just prior to your brother making these changes. Restore Points can go back as far as 30 days. A System Restore effects only your program settings and won't have any effect on personal files. Hope this works!