Your administrator has blocked this application because it potentially poses a security risk to your computer

Question

I have created an application I send (by email) with ClickOnce with Visual Studio C#. Someone gets the following error:

Your administrator has blocked this application because it potentially poses a security risk to your computer. Your security settings do not allow this application to be installed on your computer.

He uses Windows 7, 64 bits.

What can/should he do to be able to install the application?

Thanks in advance.

score 2 · Accepted Answer · answered Aug 20 '13 at 16:35

I think the issue really is that the system has the flag "do not allow unsigned code" enabled. This would make the downloaded file "blocked" by default if the code is not signed. Did you sign your code with a valid Authenticode certificate? Ask the user to right click the executable, and then find the "unblock" button. I cannot remember exactly which tab the button is on. I think that might fix your issue

score 1 · Answer 2 · edited Apr 02 '19 at 16:33

1

Make sure the following registry keys are enabled:

[HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\.NETFramework\Security\TrustManager\PromptingLevel]

LocalIntranet = Enabled

TrustedSites = Enabled

The Logitech mouse/keyboard driver update appears to be disabling these registry keys.

edited Apr 02 '19 at 16:33

Glorfindel

4,158

answered Apr 02 '19 at 15:56

Daxzeal

11

Your administrator has blocked this application because it potentially poses a security risk to your computer

2 Answers2