Once you have installed an anti-virus package, you should scan your entire computer periodically.
- Automatic scans - Depending what software you choose, you may be able to configure it to automatically scan specific files or directories and prompt you at set intervals to perform complete scans.
- Manual scans - It is also a good idea to manually scan files you receive from an outside source before opening them. This includes
- saving and scanning email attachments or web downloads rather than selecting the option to open them directly from the source
- scanning media, including CDs and DVDs, for viruses before opening any of the files