Configure antivirus software for SharePoint Portal Services

You use the Configure Antivirus Settings page in the SharePoint Central Administration pages to enable and configure antivirus protection.

Enable antivirus protection for your server or server farm

1. On the SharePoint Central Administration page, under Security Configuration, click Manage antivirus settings.

2. Select the Scan documents on upload check box.

2. Select the Scan documents on download check box.

3. If desired, select the Attempt to clean infected documents check box.

4. If you want to allow users to save infected files locally, select the Allow users to download infected documents check box.

5. Note  This option is disabled by default to prevent users from saving potentially infected files to their client computers.

6. In the Time out scanning after _seconds box, type the number of seconds to allow before timing out the scanning process.

7. The default time is 300 seconds, or 5 minutes. This should be enough time to allow the antivirus processes to finish without affecting performance. The default time is recommended, but you can adjust this time if you are experiencing performance issues.

8. In the Allow scanner to use up to  _threads box, type the number of threads to allow the scanning process to take up.

9. By default, the number of threads is set to 5, which should be sufficient for even a large number of sites. The default number of threads is recommended, but you can adjust the number of threads if you are experiencing performance issues.

10. Click OK.