What do SmartScreen filters do to prevent this unsafe download?

Today, using IE9 to download a file encountered a problem, the file download does not come down, there are red text prompts "SmartScreen Filter blocked this unsafe download."

The following figure

　　SmartScreen Filter

The SmartScreen filter is a browser security policy that Microsoft began to use in ie8.0, and a continuation of the technology in IE9 and IE10, and the function of the SmartScreen filter is similar to that of 360 security guards and QQ computer stewards detecting websites and downloading files, detecting websites or files for malicious programs, and whether they are ill Toxic, Trojan or suspicious risk.

On the whole, SmartScreen filter is a more user-friendly security mechanism, although not hundred percent safe, but also can block most of the risk outside, but also the possibility of killing, if you are sure that a Web site or a file is safe, you can try to temporarily close the SmartScreen filter, Re-enable this security mechanism after browsing or downloading.

　　How to turn off SmartScreen

In IE8, you can find the browser's Tools menu directly, and then find the SmartScreen Filter, and then select the "Close SmartScreen Filter" item later.

But IE9 and ie10 you may not be easy to find the "Tools" menu, you might as well follow these steps to try:

1, right key to any area above the browser, pop-up menu check "menu bar", the following figure:

2, you can see the familiar IE browser menu, find "Tools", and then find "SmartScreen Filter" after the "close SmartScreen Filter" can be.

Small tip:

Without a SmartScreen filter may be a security risk, so after downloading the file you want, there are plans to enable this security feature, to ensure the security of the Internet.