Solution: This application was blocked due to its security error in Windows 10

Who I am
Catherine Le Nevez
@catherinelenevez
SOURCES CONSULTED:

support.microsoft.com

Author and references

Sometimes when you try to open an application on your computer, you may get this error message: "This application has been blocked for your protection.'and the app does not open. This problem is mainly associated with User Account Control on your computer. Disabling it will fix this problem.

Fix-1 Disable User Account Control in Registry Editor-

You will need to disable User Account Control on your computer to fix this problem.

NOTE: -



Just a quick reminder before going to the solution

Registry Editor is a very sensitive part of your Windows 10 operating system. More sophisticated changes, knowingly or unknowingly, can damage your computer's registry. Therefore, we strongly recommend that you create a registry backup.

After opening the Registry Editor, click on "archive">"Export”To create the backup and save it.

1. Press the Windows key to access the search box. Copy and paste this line there.

regedit 

2. Then click on "Registry Editor".

The Registry Editor window will open.

3. You need to go to this location once the Registry Editor window is displayed.

ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionPoliciesSystem

4. Now you need double click in "Enable LUA“To change it.

5. Just set the 'Value data' to "0".

6. Then click on "all right”To save the changes.

Now close the Registry Editor window.

7. As soon as the registry editor window closes, the Security and Maintenance window will open.

8. Click on 'Restart now“To restart the computer to completely disable User Account Control.



After restarting your computer, try opening the application again.

This time the error will definitely be resolved.


Fix-2 Open the program as administrator from CMD-

If you are having this problem, please try to open any Windows utility (such as Device Administrator or Local Group Policy Editor), Follow these steps-

1. Click on the Check box next to the Windows icon and then type “cmd".

2. Hence, the right mouse button in "Symbol of the system"In the search result raised and choose"Run as administrator".


System symbol with administrative rights will open.

3. Now, type the name of the program executable (such as- devmgmt.msc o gpedit.msc ) in Window system symbol and knock Pay in To open it.

The utility window should open.

Fix-3 Set UAC to "Never notify"

Turning User Account Control “Off” can help you solve this problem.

1.Press the Windows key and type "uac".

2. In the high search results window, click "Modify User Account Control Settings".

3. Now you need to slide the bar down to "Never warn".

4. Next, click on “all right".

Now try to open the application on your computer and it will open.

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