Windows 10: Taks Manager is a file from unknown publisher?

When I try to launch Task Manager under administrator, I get UAC prompt asking if I want to allow the app from an unknown publisher to make changes to my device. This is a fairly recent problem, just few weeks ago I didn't have it.My initial thought was that it may be malware, but that doesn't seem to be the case quick scan by Windows Security and a third-party solution report all clear; same with VirusTotal scan of Taskmgr.exe. As far as I understand there's something wrong with the digital signature of the file VirusTotal states that root certificate is not trusted by the trust provider.

:)

 

Unknown Publisher when trying the installer(exe/msi) on windows 10

I'm using Visual Studio 2019 and have build "Installers(msi/exe)" using "Setup Wizard".

When i'm running the set.exe installer, the application "publisher" is being reported as "Unknown".

I've gone through some references and found that the setup.exe needs to be digitally signed with the certificate. So,

i have followed below steps to add digital signature to the setup.exe

1. Create Digital certificate (https://knowledge.digicert.com/solution/SO26065.html)

2. Using signtool i have digitally signed setup.exe

signtool.exe sign /f "E:\sample.pfx" /p "sample@123" /tr
http://timestamp.comodoca.com/rfc3161 /v "E:\setup.exeWhen
i try to run setup.exe locally, the application "publisher" is reported as "localhost" instead of "Unknown", but if i

run the same setup.exe on another system application "publisher" is reported as "Unknown"Please provide any suggestions on fixing this "Unknown
Publisher" issue

 

UAC: Do you trust the unknown publisher to make chnages to your computer

The game won't run.

User control ask if I trust this unknown publisher to do changes to the computer ?

Any suggestions beside upgrading to newer game ?

Incompatibility with Football Manager 2005- Original Title

 

unknown publisher

Hey, J.K. Rowling was an unknown publisher before Harry Potter, and look what happened to her.

But in your case, the 'unknown publisher' refers to the security certificate that vouches for a software program. These certificates need to be renewed annually or they become invalid, and Windows won't run software with an invalid security certificate.
CM Tray is part of a very old program. Upgrade to the most recent version of the program, which will likely have a valid security certificate.