When Microsoft Security Essentials detects a potentially harmful program, it alerts you by displaying a notification. However, if you trust a program that Security Essentials has detected as potentially harmful, you can allow it to run on your computer.


If Security Essentials assigns a severe or high alert level to a program, it's a widespread or exceptionally malicious program, or it is a program that might collect your personal information without your knowledge. These programs can negatively affect your privacy and the security of your computer. They can damage your computer. We strongly advise you not to run these programs on your computer.

  1. Download the program that you want to run.

  2. When Security Essentials displays the notification, click the Show details link.

  3. In the Potential threat details dialog box, select the program, click the down arrow in the Recommendation column, and then click Allow.

  4. Click Apply actions. If you're prompted for an administrator password or confirmation, type the password or confirm the action.