How can I tell what's running on my computer?

If you're on Windows, hit ctrl-alt-delete and then select Task Manager. You can also get to it by right-clicking on the task bar and select Task Manager.

If you are running a version of Windows, run the taskmanager. You can get there by typing CTRL-ALT-DELETE and selecting the taskmanager option. The PROCESS tab shows what is running.

If you're looking to find out what starts up automatically, you should run msconfig and click on the Startup tab.

That's what I was looking for. Thanks, Drewdad.

Joe(thanks to Engineer too!)Nation

If you happen to use CCleaner on your computer to rid it of malware in the registry and spammy cookies, it also has a utility for viewing what programs are loaded at startup. It is located under the Tools icon.

I use Spybot. I'll check for a similar utility. What I'm doing now is finding what's loading automatically and seeing if there is a way of telling it not to.
Joe(like the weather thing)Nation