What to do when you see the error «This application was blocked to protect»
In an effort to make Windows 10 more secure, the developers have perfected the mechanisms of protection, however unwittingly created for users additional problems. So, in some cases, when installing or launching the most seemingly safe programs Windows 10 responds by the appearance of the window with the warning «This application was blocked to protect». The blocked program is not installed and will not start. Even with local administrator rights.
In variations of this message can look like «This publisher has been blocked and its programs will not run on the computer.» The reason for such a strange behavior of Windows 10 is to control accounts. The fact that the algorithms they contain, not only block potentially dangerous applications, but also those that have expired or revoked digital signature.
Note: to view the digital signature in the properties of the file by switching to the tab «Digital signature». This tab is in the properties of most executable files famous software.
If you are sure in security is run or installed applications, the above-described protection mechanism can be circumvented in several ways. You can:
- Try to run the executable from the command line
- Disable user account control
- To delete a built-in digital signature
The first method is the easiest. Open the CMD console as administrator, and specify in it the path to the executable file.
If this doesn’t help, temporarily disable UAC in any convenient way for you, install the application and then re-turn the user account control. Fans dig in the registry can use the following tweak. Go to HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Policies/System and change the value EnableLUA from 1 to 0. Accordingly to enable UAC again, you need to install 1.
Remove a digital signature is a more radical option. Here, you’ll need third-party software tools, such as utility FileUnsigner. It’s free, needs no installation and is very easy to use. To delete from a file’s digital signature is done by dragging the executable file of the utility. The tab «Digital signature» in the properties file should disappear.
If any of the three above methods do not help, you can try to install a stubborn app in session built-in administrator account in Windows 10, but that’s a topic for another discussion.