Menu
Cellphone manuals and free pdf instructions. Find the user manual you need for your cellphone and other products at ManualsOnline.
Yes, it is a good thing that Windows 10 has security features like Defender SmartScreen built in, but sometimes they get in the way. You really want to install this app — you know there's nothing wrong with it — but you're locked out.
Windows Defender SmartScreen acts as a sort of guard dog while you use Windows 10. It will block you from opening some apps if they come from an unknown place or are created by an unknown publisher. While these steps will get you around the Windows 10 block, you should use them with care. Some apps really are harmful and really will get you in a mess. Only go around the Windows 10 app block if you know for sure that the file is safe.
How to open a file blocked by Windows Defender SmartScreen
If a file you know is safe is going to give you trouble when you attempt to launch it, you can quickly give it permission to open.
- Navigate to the file or program that's being blocked by SmartScreen.
- Right-click the file.
- Click Properties.
- Click the checkbox next to Unblock so that a checkmark appears.
- Click Apply.
- Jun 14, 2016 'This App has been blocked for your protection' in Drivers and Hardware I'm trying to install additional driver for my printer/scanner from the CD but I keep getting the message above when I try autorun or setup from the disc with the following additional comment: 'An administrator has blocked you from running this.
- Jun 19, 2018 Solved: This app has been blocked for your protection. In my situation I also had to right click and run as administrator to get things working. Thanks for your guide to get me to this step, it did not work from non Administrator user profiles for some reason (even though another user profile was set to have Administrator priveleges).
The file should now be treated as safe by SmartScreen and you'll be allowed to open it. If you're running into further problems, try running the program as an Administrator in addition to the steps above.
How to disable Windows Defender SmartScreen
Although not recommended, SmartScreen can be disabled through Windows Defender. If you must completely disable SmartScreen, we recommend re-enabling it soon after.
Mmc An Administrator Has Blocked
- Launch Windows Defender Security Center from your Start menu, desktop, or taskbar.
- Click the App and browser control button on the left side of the window.
- Click Off in the Check apps and files section.
- Click Off in the SmartScreen for Microsoft Edge section.
- Click Off in the SmartScreen for Windows Store apps section.
SmartScreen is now completely disabled. If you'd like to still receive a warning when a potentially malicious file or program is detected, you can choose Warn in each SmartScreen section.
How to enable Windows Defender SmartScreen
Once you've done everything that SmartScreen was preventing you from doing, you should immediately go back and re-enable it. Even if the file or program you were working with was known not to be malicious, forgetting to enable SmartScreen could lead to big problems in the future.
- Launch Windows Defender Security Center from your Start menu, desktop, or taskbar.
- Click the App and browser control button on the left side of the window.
- Click Block in the Check apps and files section.
- Click Block in the SmartScreen for Microsoft Edge section.
- Click Warn in the SmartScreen for Windows Store apps section.
More resources
When attempting to download a file through Microsoft Edge, you might sometimes run into a SmartScreen block. Use this guide to get around it and download the files you want.
Updated August 1, 2018: I've refreshed this guide to ensure you're still getting current information about SmartScreen and how to get around it.
On A RollFast and Slow ring Insiders pick up Windows 10 build 19041.1
Windows 10 An Administrator Has Blocked
Windows Insiders on the Fast and Slow rings can check out a fresh new build today. Rolling out now is Windows 10 20H1 preview build 19041.1, which brings new languages for quick searches and more fixes.