I think I might have a virus. How can I check?

The first thing you should do is consider how you might have gotten the virus.
The most common method of transmission is through clicking on links on Emails or chat tools as well as removable disks. Commonly, viruses are disguised to look as if they are from someone you know as an e-mail with an attachment.
Also, the e-mail will usually appear to be "not right" in that there are usually grammatical errors and it will not make sense that you are getting an e-mail from that person with text like this.
Never double click an attachment that has the .exe extension, even if it is from someone you know. If these have happened to you and your computer is acting oddly, it is likely you have a virus. Immediately contact the IT helpdesk